{"id":2007,"date":"2021-04-20T03:21:00","date_gmt":"2021-04-20T03:21:00","guid":{"rendered":"https:\/\/pj4iaixa9m.wpdns.site\/?p=2007"},"modified":"2021-04-22T04:57:43","modified_gmt":"2021-04-22T04:57:43","slug":"best-introduction-to-blanking-section-and-blanking-gap-foundation","status":"publish","type":"post","link":"https:\/\/www.harslepress.com\/vi\/best-introduction-to-blanking-section-and-blanking-gap-foundation\/","title":{"rendered":"Gi\u1edbi thi\u1ec7u v\u1ec1 ph\u1ea7n t\u1ea9y tr\u1eafng v\u00e0 c\u01a1 s\u1edf t\u1ea1o kho\u1ea3ng tr\u1ed1ng"},"content":{"rendered":"<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Th\u1eddi gian \u0111\u1ecdc \u01b0\u1edbc t\u00ednh:  <\/span><span class=\"yoast-reading-time__reading-time\">25<\/span><span class=\"yoast-reading-time__time-unit\"> ph\u00fat<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">t\u1ea9y tr\u1eafng<\/a> \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c, c\u00e1c v\u1ebft n\u1ee9t do c\u1eaft t\u1ea1o ra b\u1edfi c\u00e1c c\u1ea1nh c\u1ee7a <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">c\u00fa \u0111\u1ea5m<\/a> v\u00e0 c\u00e1c v\u1ebft n\u1ee9t do c\u1eaft t\u1ea1o ra b\u1edfi c\u1ea1nh c\u1ee7a khu\u00f4n l\u00f5m h\u1ee3p nh\u1ea5t v\u1edbi nhau. L\u00fac n\u00e0y, c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c m\u1eb7t c\u1eaft ngang c\u1ee7a ph\u1ea7n ph\u00f4i nh\u01b0 h\u00ecnh 1-1. N\u00f3 c\u00f3 4 khu v\u1ef1c \u0111\u1eb7c tr\u01b0ng sau \u0111\u00e2y.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"391\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2009\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-150x73.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-300x147.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-768x375.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-600x293.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-1 \u0110\u1eb7c t\u00ednh m\u1eb7t c\u1eaft c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Khu v\u1ef1c g\u00f3c b\u1ecb s\u1ee5t (g\u00f3c tr\u00f2n)<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f9ng n\u00e0y \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh do bi\u1ebfn d\u1ea1ng u\u1ed1n cong v\u00e0 k\u00e9o d\u00e0i c\u1ee7a v\u1eadt li\u1ec7u g\u1ea7n m\u00e9p \u0111\u1ed9t khi m\u00e9p \u0111\u1ed9t \u0111\u01b0\u1ee3c \u00e9p v\u00e0o v\u1eadt li\u1ec7u, v\u00e0 v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh khe h\u1edf gi\u1eefa khu\u00f4n \u0111\u1ed9t v\u00e0 khu\u00f4n l\u00f5m. Trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t l\u1ed7, g\u00f3c s\u1eadp n\u1eb1m \u1edf \u0111\u1ea7u nh\u1ecf c\u1ee7a ph\u1ea7n l\u1ed7; trong qu\u00e1 tr\u00ecnh ph\u00f4i, g\u00f3c thu g\u1ecdn n\u1eb1m \u1edf \u0111\u1ea7u l\u1edbn c\u1ee7a b\u1ec1 m\u1eb7t ph\u00f4i. T\u1ea5m c\u00f3 \u0111\u1ed9 d\u1ebbo c\u00e0ng t\u1ed1t th\u00ec khe h\u1edf gi\u1eefa c\u00e1c khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u00e0ng l\u1edbn v\u00e0 g\u00f3c thu g\u1ecdn h\u00ecnh th\u00e0nh c\u00e0ng l\u1edbn.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>D\u1ea3i s\u00e1ng<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f9ng n\u00e0y x\u1ea3y ra giai \u0111o\u1ea1n bi\u1ebfn d\u1ea1ng d\u1ebbo. Khi l\u01b0\u1ee1i c\u1eaft c\u1eaft v\u00e0o v\u1eadt li\u1ec7u t\u1ea5m, v\u1eadt li\u1ec7u t\u1ea5m v\u00e0 c\u00e1c m\u1eb7t b\u00ean c\u1ee7a m\u00e9p c\u1eaft khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m \u0111\u01b0\u1ee3c \u00e9p \u0111\u00f9n \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1eb7t c\u1eaft th\u1eb3ng \u0111\u1ee9ng s\u00e1ng s\u1ee7a. N\u00f3 th\u01b0\u1eddng chi\u1ebfm 1\/3 ~ 1\/2 c\u1ee7a ph\u1ea7n \u0111\u1ea7y \u0111\u1ee7. Trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t l\u1ed7, d\u1ea3i s\u00e1ng n\u1eb1m \u1edf \u0111\u1ea7u nh\u1ecf c\u1ee7a ph\u1ea7n l\u1ed7; b\u00ean trong <a href=\"https:\/\/www.harslepress.com\/vi\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">t\u1ea9y tr\u1eafng<\/a> qu\u00e1 tr\u00ecnh, d\u1ea3i s\u00e1ng n\u1eb1m \u1edf ph\u1ea7n cu\u1ed1i l\u1edbn c\u1ee7a b\u1ed9 ph\u1eadn. T\u1ea5m c\u00f3 \u0111\u1ed9 d\u1ebbo c\u00e0ng t\u1ed1t th\u00ec khe h\u1edf gi\u1eefa c\u00e1c khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u00e0ng nh\u1ecf, b\u1ec1 r\u1ed9ng c\u1ee7a d\u1ea3i s\u00e1ng c\u00e0ng r\u1ed9ng. \u0110ai s\u00e1ng th\u01b0\u1eddng l\u00e0 b\u1ec1 m\u1eb7t \u0111ai \u0111o, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a chi ti\u1ebft.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u0110\u1ee9t g\u00e3y<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khu v\u1ef1c n\u00e0y \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh trong giai \u0111o\u1ea1n \u0111\u1ee9t g\u00e3y. V\u00f9ng \u0111\u1ee9t g\u00e3y n\u1eb1m c\u1ea1nh v\u00f9ng s\u00e1ng, l\u00e0 b\u1ec1 m\u1eb7t x\u00e9 r\u00e1ch \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh do s\u1ef1 gi\u00e3n n\u1edf li\u00ean t\u1ee5c c\u1ee7a c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf g\u1ea7n l\u01b0\u1ee1i c\u1eaft d\u01b0\u1edbi \u1ee9ng su\u1ea5t k\u00e9o. B\u1ec1 m\u1eb7t c\u1ee7a \u0111\u1edbi \u0111\u1ee9t g\u00e3y g\u1ed3 gh\u1ec1 v\u00e0 c\u00f3 g\u00f3c xi\u00ean 4 \u00b0 ~ 6 \u00b0. Trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t l\u1ed7, v\u1ebft g\u00e3y n\u1eb1m \u1edf \u0111\u1ea7u l\u1edbn c\u1ee7a ph\u1ea7n l\u1ed7; trong qu\u00e1 tr\u00ecnh tr\u1ed1ng, v\u1ebft \u0111\u1ee9t g\u00e3y n\u1eb1m \u1edf \u0111\u1ea7u nh\u1ecf c\u1ee7a ph\u1ea7n b\u1ed9 ph\u1eadn. Khe h\u1edf gi\u1eefa c\u00e1c khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u00e0ng l\u1edbn th\u00ec v\u00f9ng n\u1ee9t c\u00e0ng r\u1ed9ng v\u00e0 g\u00f3c xi\u00ean c\u00e0ng l\u1edbn.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Tr\u1ee5c tr\u1eb7c<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 h\u00ecnh th\u00e0nh g\u1edd l\u00e0 do \u1edf giai \u0111o\u1ea1n cu\u1ed1i c\u1ee7a bi\u1ebfn d\u1ea1ng d\u1ebbo khi c\u00e1c m\u00e9p c\u1eaft c\u1ee7a khu\u00f4n \u0111\u1ed9t v\u00e0 khu\u00f4n c\u00e1i c\u1eaft v\u00e0o t\u1ea5m gia c\u00f4ng \u0111\u1ebfn m\u1ed9t \u0111\u1ed9 s\u00e2u nh\u1ea5t \u0111\u1ecbnh, v\u1eadt li\u1ec7u \u1edf m\u1eb7t tr\u01b0\u1edbc c\u1ee7a l\u01b0\u1ee1i c\u1eaft b\u1ecb n\u00e9n l\u1ea1i, v\u00e0 l\u01b0\u1ee1i c\u1eaft \u1edf tr\u1ea1ng th\u00e1i \u00e1p su\u1ea5t t\u0129nh cao, l\u00e0m cho \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u c\u1ee7a v\u1ebft n\u1ee9t, kh\u00f4ng N\u00f3 s\u1ebd x\u1ea3y ra \u1edf \u0111\u1ea7u l\u01b0\u1ee1i c\u1eaft, nh\u01b0ng kh\u00f4ng xa m\u1eb7t khu\u00f4n. D\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a \u1ee9ng su\u1ea5t k\u00e9o, c\u00e1c v\u1ebft n\u1ee9t s\u1ebd d\u00e0i ra v\u00e0 v\u1eadt li\u1ec7u b\u1ecb v\u1ee1 t\u1ea1o ra c\u00e1c g\u1edd. Kho\u1ea3ng c\u00e1ch gi\u1eefa \u0111i\u1ec3m xu\u1ea5t hi\u1ec7n v\u1ebft n\u1ee9t v\u00e0 \u0111\u1ea7u l\u01b0\u1ee1i dao tr\u1edf th\u00e0nh c\u00e1c \u0111\u01b0\u1eddng g\u1edd. Chi\u1ec1u cao. C\u00e1c v\u1ebft g\u1eaby l\u00e0 kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi trong qu\u00e1 tr\u00ecnh t\u1ea9y tr\u1eafng th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng m\u1eb7t c\u1eaft ph\u00f4i c\u1ee7a chi ti\u1ebft ph\u00f4i, trong \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u nh\u1ea5t l\u00e0 khe h\u1edf ph\u00f4i gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m. Trong \u0111i\u1ec1u ki\u1ec7n t\u1ea9y tr\u1eafng c\u00f3 khe h\u1edf h\u1ee3p l\u00fd, m\u1ea3nh tr\u1ed1ng thu \u0111\u01b0\u1ee3c c\u00f3 g\u00f3c thu g\u1ecdn m\u1eb7t c\u1eaft ngang nh\u1ecf v\u00e0 d\u1ea3i s\u00e1ng b\u00ecnh th\u01b0\u1eddng. M\u1eb7c d\u00f9 d\u1ea3i \u0111\u1ee9t g\u00e3y g\u1ed3 gh\u1ec1 nh\u01b0ng t\u01b0\u01a1ng \u0111\u1ed1i b\u1eb1ng ph\u1eb3ng, \u0111\u1ed9 d\u1ed1c nh\u1ecf v\u00e0 kh\u00f4ng r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dimensional-accuracy-of-blanking-parts\"><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a mi\u1ebfng ph\u00f4i l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa k\u00edch th\u01b0\u1edbc th\u1ef1c c\u1ee7a mi\u1ebfng ph\u00f4i v\u00e0 k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n tr\u00ean b\u1ea3n v\u1ebd. Ch\u00eanh l\u1ec7ch c\u00e0ng nh\u1ecf th\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u00e0ng cao. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y bao g\u1ed3m hai sai l\u1ec7ch: m\u1ed9t l\u00e0 sai l\u1ec7ch s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00ednh khu\u00f4n v\u00e0 hai l\u00e0 sai l\u1ec7ch c\u1ee7a b\u1ed9 ph\u1eadn \u0111\u1ed9t so v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111\u1ed9t ho\u1eb7c khu\u00f4n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i c\u00f3 li\u00ean quan \u0111\u1ebfn nhi\u1ec1u y\u1ebfu t\u1ed1, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ee9c \u0111\u1ed9 s\u1ea3n xu\u1ea5t c\u1ee7a khu\u00f4n, kho\u1ea3ng c\u00e1ch ph\u00f4i, t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u, v.v. Y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0 kho\u1ea3ng c\u00e1ch ph\u00f4i.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u0110\u1ed9 ch\u00ednh x\u00e1c s\u1ea3n xu\u1ea5t c\u1ee7a khu\u00f4n<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c s\u1ea3n xu\u1ea5t c\u1ee7a khu\u00f4n c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n c\u00e0ng cao th\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a chi ti\u1ebft ph\u00f4i trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c c\u00e0ng cao. Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p b\u00ecnh th\u01b0\u1eddng, \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ebf t\u1ea1o c\u1ee7a khu\u00f4n cao h\u01a1n t\u1eeb 2 \u0111\u1ebfn 4 c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c so v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i. Khi khu\u00f4n d\u1eadp ph\u00f4i c\u00f3 \u0111\u1ed9 h\u1edf h\u1ee3p l\u00fd v\u00e0 c\u00e1c c\u1ea1nh s\u1eafc, m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ebf t\u1ea1o khu\u00f4n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong B\u1ea3ng 1-2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"463\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2012\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-150x87.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-300x174.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-768x444.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-600x347.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>B\u1ea3ng 1-2 \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn t\u1ea9y tr\u1eafng<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Kho\u1ea3ng tr\u1ed1ng<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi khe h\u1edf qu\u00e1 l\u1edbn, ngo\u00e0i vi\u1ec7c b\u1ecb c\u1eaft trong qu\u00e1 tr\u00ecnh ph\u00f4i, v\u1eadt li\u1ec7u t\u1ea5m c\u0169ng s\u1ebd sinh ra bi\u1ebfn d\u1ea1ng k\u00e9o d\u00e0i v\u00e0 u\u1ed1n cong l\u1edbn h\u01a1n. Sau khi t\u1ea9y tr\u1eafng, v\u1eadt li\u1ec7u ph\u1ee5c h\u1ed3i m\u1ed9t c\u00e1ch \u0111\u00e0n h\u1ed3i v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ea3nh tr\u1ed1ng s\u1ebd co l\u1ea1i theo h\u01b0\u1edbng th\u1ef1c t\u1ebf. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i, k\u00edch th\u01b0\u1edbc s\u1ebd nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n, v\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9t l\u1ed7, k\u00edch th\u01b0\u1edbc s\u1ebd l\u1edbn h\u01a1n k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111\u1ed9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi khe h\u1edf qu\u00e1 nh\u1ecf, ngo\u00e0i vi\u1ec7c b\u1ecb c\u1eaft, v\u1eadt li\u1ec7u t\u1ea5m s\u1ebd b\u1ecb \u00e9p nhi\u1ec1u h\u01a1n trong qu\u00e1 tr\u00ecnh ch\u1ea7n. Sau khi t\u1ea9y tr\u1eafng, s\u1ef1 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m cho k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ea3nh tr\u1ed1ng n\u1edf ra theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a th\u1ef1c th\u1ec3. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i, k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 s\u1ebd l\u1edbn h\u01a1n k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n; \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9t, k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 s\u1ebd nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111\u1ed9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi khe h\u1edf th\u00edch h\u1ee3p, trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t d\u1eadp, v\u00f9ng bi\u1ebfn d\u1ea1ng c\u1ee7a v\u1eadt li\u1ec7u t\u1ea5m \u0111\u01b0\u1ee3c t\u00e1ch ra d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u1eaft, do \u0111\u00f3 k\u00edch th\u01b0\u1edbc c\u1ee7a mi\u1ebfng ph\u00f4i b\u1eb1ng v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a mi\u1ebfng \u0111\u1ed9t d\u1eadp b\u1eb1ng v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00fa \u0111\u1ea5m.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>B\u1ea3n ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i c\u1ee7a v\u1eadt li\u1ec7u trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t d\u1eadp. Bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i c\u1ee7a th\u00e9p nh\u1eb9 nh\u1ecf v\u00e0 gi\u00e1 tr\u1ecb ph\u1ee5c h\u1ed3i sau khi \u0111\u1ed9t d\u1eadp c\u0169ng nh\u1ecf, do \u0111\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn cao. T\u00ecnh h\u00ecnh v\u1edbi th\u00e9p c\u1ee9ng th\u00ec ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ed7i h\u00ecnh d\u1ea1ng c\u1ee7a ph\u1ea7n tr\u1ed1ng<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ed7i h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c khuy\u1ebft t\u1eadt nh\u01b0 cong v\u00eanh, bi\u1ebfn d\u1ea1ng v\u00e0 bi\u1ebfn d\u1ea1ng. \u0110\u1ed9 h\u1edf qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 d\u1ec5 g\u00e2y cong v\u00eanh (m\u00e1i v\u00f2m); v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, khe h\u1edf kh\u00f4ng \u0111\u1ec1u, v\u00e0 ma s\u00e1t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa g\u00f3c sau c\u1ee7a khu\u00f4n v\u00e0 v\u1eadt li\u1ec7u s\u1ebd g\u00e2y ra khuy\u1ebft t\u1eadt bi\u1ebfn d\u1ea1ng; m\u00e9p tr\u1ed1ng b\u1ecb \u0111\u1ee5c l\u1ed7 ho\u1eb7c kho\u1ea3ng c\u00e1ch l\u1ed7 qu\u00e1 nh\u1ecf, v.v ... s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed3ng. \u0110\u00e3 bi\u1ebfn d\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sai s\u1ed1 h\u00ecnh d\u1ea1ng c\u1ee7a ph\u1ea7n ph\u00f4i l\u00e0 kho\u1ea3ng c\u00e1ch l\u01b0\u1ee1i dao. C\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng quy lu\u1eadt chung v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a khe h\u1edf \u0111\u1ebfn m\u00e1i v\u00f2m c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng l\u00e0 khi khe h\u1edf nh\u1ecf th\u00ec v\u00f2m l\u1edbn h\u01a1n; khi kho\u1ea3ng c\u00e1ch l\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u (5% ~ 15%), m\u00e1i v\u00f2m nh\u1ecf h\u01a1n; khi kho\u1ea3ng c\u00e1ch t\u0103ng l\u00ean, m\u00e1i v\u00f2m s\u1ebd \u0111\u01b0\u1ee3c T\u0103ng \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 ph\u1eb3ng c\u1ee7a mi\u1ebfng tr\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u1ed9t d\u1eadp kh\u00f4ng ch\u1ec9 ph\u1ea3i \u0111\u1ed9t nh\u1eefng chi ti\u1ebft c\u00f3 h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a b\u1ea3n v\u1ebd m\u00e0 c\u00f2n ph\u1ea3i c\u00f3 nh\u1eefng y\u00eau c\u1ea7u nh\u1ea5t \u0111\u1ecbnh v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng. Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng bao g\u1ed3m ch\u1ea5t l\u01b0\u1ee3ng m\u1eb7t c\u1eaft, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u00edch th\u01b0\u1edbc v\u00e0 sai s\u1ed1 h\u00ecnh d\u1ea1ng. Ph\u1ea7n tr\u1ed1ng ph\u1ea3i c\u00e0ng th\u1eb3ng \u0111\u1ee9ng c\u00e0ng t\u1ed1t, nh\u1eb5n v\u00e0 c\u00f3 g\u1edd nh\u1ecf. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u00edch th\u01b0\u1edbc ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o n\u1eb1m trong ph\u1ea1m vi dung sai \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong b\u1ea3n v\u1ebd. H\u00ecnh d\u1ea1ng c\u1ee7a b\u1ed9 ph\u1eadn ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a b\u1ea3n v\u1ebd v\u00e0 b\u1ec1 m\u1eb7t ph\u1ea3i th\u1eb3ng \u0111\u1ee9ng nh\u1ea5t c\u00f3 th\u1ec3, ngh\u0129a l\u00e0, m\u00e1i v\u00f2m ph\u1ea3i nh\u1ecf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c k\u00edch th\u01b0\u1edbc c\u1ee7a c\u1ea1nh l\u1ed3i v\u00e0 l\u00f5m c\u1ee7a khu\u00f4n \u0111\u1ed9t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kho\u1ea3ng c\u00e1ch \u0111\u1ed9t, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng Z, v\u00e0 c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kho\u1ea3ng c\u00e1ch hai m\u1eb7t (khe h\u1edf m\u1ed9t m\u1eb7t \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng Z \/ 2). Khe h\u1edf l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 qu\u00e1 tr\u00ecnh r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp ph\u00f4i. Khe h\u1edf ph\u00f4i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng, l\u1ef1c t\u1ea9y v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a chi ti\u1ebft t\u1ea1o ph\u00f4i. Trong qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u l\u00e2u d\u00e0i, ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng quy lu\u1eadt \u1ea3nh h\u01b0\u1edfng l\u00e0 kh\u00e1c nhau. Do \u0111\u00f3, kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb khe h\u1edf n\u00e0o h\u1ee3p l\u00fd tuy\u1ec7t \u0111\u1ed1i, c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u1ed3ng th\u1eddi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng m\u1eb7t c\u1eaft ngang c\u1ee7a chi ti\u1ebft ph\u00f4i t\u1ed1t nh\u1ea5t, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc cao nh\u1ea5t, tu\u1ed5i th\u1ecd cao nh\u1ea5t v\u00e0 l\u1ef1c c\u1eaft ph\u00f4i nh\u1ecf nh\u1ea5t. Trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t, vi\u1ec7c l\u1ef1a ch\u1ecdn khe h\u1edf ch\u1ee7 y\u1ebfu x\u00e9t \u0111\u1ebfn hai y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a m\u1eb7t c\u1eaft ph\u00f4i v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n, ch\u00fang li\u00ean quan m\u1eadt thi\u1ebft \u0111\u1ebfn gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.harslepress.com\/vi\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">T\u1ea9y tr\u1eafng<\/a> l\u1ed7 h\u1ed5ng<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khe h\u1edf c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a chi ti\u1ebft ph\u00f4i, tu\u1ed5i th\u1ecd khu\u00f4n, l\u1ef1c x\u1ea3, ... nh\u01b0ng quy lu\u1eadt \u1ea3nh h\u01b0\u1edfng l\u00e0 kh\u00e1c nhau, kh\u00f4ng c\u00f3 khe h\u1edf n\u00e0o \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng ph\u00f4i, tu\u1ed5i th\u1ecd khu\u00f4n v\u00e0 l\u1ef1c x\u1ea3 t\u1ea1i c\u00f9ng l\u00fac. Trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t, vi\u1ec7c l\u1ef1a ch\u1ecdn khe h\u1edf ch\u1ee7 y\u1ebfu xem x\u00e9t ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a \u0111o\u1ea1n ph\u00f4i v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n. \u0110\u1ed3ng th\u1eddi, xem x\u00e9t \u0111\u1ed9 l\u1ec7ch trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o khu\u00f4n v\u00e0 \u0111\u1ed9 hao m\u00f2n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, ch\u1ecdn ph\u1ea1m vi khe h\u1edf ph\u00f9 h\u1ee3p, mi\u1ec5n l\u00e0 c\u00f3 th\u1ec3 gia c\u00f4ng c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i t\u1ed1t trong ph\u1ea1m vi n\u00e0y. Gi\u00e1 tr\u1ecb nh\u1ecf nh\u1ea5t c\u1ee7a kho\u1ea3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kho\u1ea3ng c\u00e1ch h\u1ee3p l\u00fd nh\u1ecf nh\u1ea5t, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng Z<sub>min<\/sub>; gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kho\u1ea3ng c\u00e1ch h\u1ee3p l\u00fd l\u1edbn nh\u1ea5t, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng Z<sub>t\u1ed1i \u0111a<\/sub>. X\u00e9t th\u1ea5y s\u1ef1 m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng s\u1ebd l\u00e0m t\u0103ng khe h\u1edf n\u00ean th\u1ef1c t\u1ebf thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o khu\u00f4n th\u01b0\u1eddng s\u1eed d\u1ee5ng khe h\u1edf h\u1ee3p l\u00fd t\u1ed1i thi\u1ec3u Z<sub>min<\/sub>.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>X\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch tr\u1ed1ng h\u1ee3p l\u00fd<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n nay c\u00f3 3 ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb khe h\u1edf ph\u00f4i h\u1ee3p l\u00fd: x\u00e1c \u0111\u1ecbnh l\u00fd thuy\u1ebft, x\u00e1c \u0111\u1ecbnh th\u1ef1c nghi\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p tra b\u1ea3ng.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh l\u00fd thuy\u1ebft.<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh l\u00fd thuy\u1ebft c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u00f4ng th\u1ee9c. C\u01a1 s\u1edf ch\u00ednh c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c v\u1ebft n\u1ee9t vi m\u00f4 tr\u00ean v\u00e0 d\u01b0\u1edbi ch\u1ed3ng l\u00ean nhau v\u00e0 c\u00f3 \u0111\u01b0\u1ee3c m\u1eb7t c\u1eaft tr\u1ed1ng t\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00ecnh 1-3 cho th\u1ea5y tr\u1ea1ng th\u00e1i t\u1ee9c th\u1eddi c\u1ee7a v\u1ebft n\u1ee9t trong qu\u00e1 tr\u00ecnh \u0111\u1ed9t d\u1eadp. Theo m\u1ed1i quan h\u1ec7 h\u00ecnh h\u1ecdc trong h\u00ecnh, m\u1ed9t kho\u1ea3ng c\u00e1ch h\u1ee3p l\u00fd c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c l\u00e0<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">                                                                 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Z = 2 (th<sub>0<\/sub>) tan\u03b2 = 2t (1 gi\u1edd<sub>0<\/sub>\/ t) tan\u03b2 (2 -1)&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"660\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2011\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-150x124.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-300x248.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-768x634.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-600x495.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-3 S\u01a1 \u0111\u1ed3 t\u00ednh to\u00e1n khe h\u1edf kho\u1ea3ng tr\u1ed1ng l\u00fd thuy\u1ebft<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede \u0111\u00e2y t \u2014- \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           h<sub>0<\/sub>\u2014- Chi\u1ec1u s\u00e2u c\u1ee7a c\u00fa \u0111\u1ea5m v\u00e0o v\u1eadt li\u1ec7u khi xu\u1ea5t hi\u1ec7n v\u1ebft n\u1ee9t;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           h<sub>0<\/sub>\/ t \u2014- \u0111\u1ed9 s\u00e2u t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a c\u00fa \u0111\u1ea5m v\u00e0o v\u1eadt li\u1ec7u khi xu\u1ea5t hi\u1ec7n v\u1ebft n\u1ee9t;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           \u03b2 \u2014 g\u00f3c gi\u1eefa v\u1ebft n\u1ee9t c\u1eaft v\u00e0 ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb ph\u01b0\u01a1ng tr\u00ecnh 2-1 c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng khe h\u1edf h\u1ee3p l\u00fd Z li\u00ean quan \u0111\u1ebfn chi\u1ec1u d\u00e0y v\u1eadt li\u1ec7u t, chi\u1ec1u s\u00e2u xuy\u00ean t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a c\u00fa \u0111\u1ea5m v\u00e0o v\u1eadt li\u1ec7u h0 \/ t v\u00e0 g\u00f3c n\u1ee9t \u03b2, v\u00e0 h0 \/ t kh\u00f4ng ch\u1ec9 li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u m\u00e0 c\u00f2n b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 d\u00e0y to\u00e0n di\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u. \u1ea3nh h\u01b0\u1edfng. C\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a h<sub>0<\/sub>\/ t v\u00e0 \u03b2 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong B\u1ea3ng 1-4.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"469\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2013\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-300x176.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-768x450.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-18x12.jpg 18w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-150x88.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>B\u1ea3ng 1-4 gi\u1edd<sub>o<\/sub>\/ t v\u00e0 gi\u00e1 tr\u1ecb \u03b2 c\u1ee7a m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, v\u1eadt li\u1ec7u c\u00f3 chi\u1ec1u d\u00e0y c\u00e0ng l\u1edbn th\u00ec \u0111\u1ed9 d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u c\u1ee9ng v\u00e0 gi\u00f2n c\u00e0ng gi\u1ea3m, gi\u00e1 tr\u1ecb khe h\u1edf y\u00eau c\u1ea7u Z c\u00e0ng l\u1edbn; v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 d\u00e0y c\u00e0ng m\u1ecfng th\u00ec \u0111\u1ed9 d\u1ebbo c\u00e0ng t\u1ed1t, gi\u00e1 tr\u1ecb khe h\u1edf y\u00eau c\u1ea7u c\u00e0ng nh\u1ecf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n l\u00fd thuy\u1ebft kh\u00f4ng thu\u1eadn ti\u1ec7n khi s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t, n\u00ean s\u1ed1 li\u1ec7u th\u1ef1c nghi\u1ec7m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i hi\u1ec7n nay.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh th\u1ef1c nghi\u1ec7m<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c th\u1ef1c nghi\u1ec7m sau \u0111\u00e2y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a khe h\u1edf gia c\u00f4ng h\u1ee3p l\u00fd Z.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">                                                         Z = ct (2-2)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00f4ng th\u1ee9c, t \u2014- \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u, (mm);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">                             c \u2014- H\u1ec7 s\u1ed1, li\u00ean quan \u0111\u1ebfn t\u00ednh ch\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u, khi t &lt;3mm, c = 6% ~ 12%; khi t&gt; 3mm th\u00ec c = 15% ~ 25%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi v\u1eadt li\u1ec7u m\u1ec1m, l\u1ea5y gi\u00e1 tr\u1ecb nh\u1ecf; khi v\u1eadt li\u1ec7u c\u1ee9ng th\u00ec l\u1ea5y gi\u00e1 tr\u1ecb l\u1edbn.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ph\u01b0\u01a1ng ph\u00e1p b\u1ea3ng tra c\u1ee9u<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i chung, s\u1ebd c\u00f3 d\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi m\u1ed9t b\u1ea3ng \u0111\u1eb7c bi\u1ec7t cho kho\u1ea3ng c\u00e1ch gia c\u00f4ng ban \u0111\u1ea7u c\u1ee7a khu\u00f4n d\u1eadp ph\u00f4i v\u00e0 khu\u00f4n d\u1eadp l\u1ed7, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia c\u00f4ng ph\u00f4i trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n chung. Gi\u00e1 tr\u1ecb nh\u1ecf nh\u1ea5t Z<sub>min<\/sub>&nbsp;c\u1ee7a kho\u1ea3ng c\u00e1ch ban \u0111\u1ea7u trong b\u1ea3ng l\u00e0 kho\u1ea3ng c\u00e1ch h\u1ee3p l\u00fd nh\u1ecf nh\u1ea5t v\u00e0 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t Z<sub>t\u1ed1i \u0111a<\/sub>&nbsp;c\u1ee7a kho\u1ea3ng c\u00e1ch ban \u0111\u1ea7u l\u00e0 t\u00ednh \u0111\u1ebfn l\u1ed7i s\u1ea3n xu\u1ea5t c\u1ee7a \u0111\u1ed9t v\u00e0 khu\u00f4n, th\u00eam m\u1ed9t gi\u00e1 tr\u1ecb tr\u00ean c\u01a1 s\u1edf Z<sub>min<\/sub>. Trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, khe h\u1edf s\u1ebd t\u0103ng l\u00ean do b\u1ed9 ph\u1eadn l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n b\u1ecb m\u00e0i m\u00f2n, do \u0111\u00f3 khe h\u1edf t\u1ed1i \u0111a (khe h\u1edf h\u1ee3p l\u00fd l\u1edbn nh\u1ea5t) c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong b\u1ea3ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Nguy\u00ean t\u1eafc l\u1ef1a ch\u1ecdn kho\u1ea3ng c\u00e1ch \u0111\u1ed9t l\u1ed7 h\u1ee3p l\u00fd<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng khi \u0111\u1eb7t kho\u1ea3ng c\u00e1ch tr\u1ed1ng \u1edf m\u1ed9t gi\u00e1 tr\u1ecb nh\u1ecf th\u00ec ch\u1ea5t l\u01b0\u1ee3ng m\u1eb7t c\u1eaft ngang c\u1ee7a ph\u1ea7n ph\u00f4i t\u1ed1t h\u01a1n, nh\u01b0ng n\u1ebfu khe h\u1edf qu\u00e1 nh\u1ecf th\u00ec l\u1ef1c t\u1ea9y v\u00e0 l\u1ef1c h\u1ed3i s\u1ebd t\u0103ng l\u00ean, v\u00e0 d\u1ecbch v\u1ee5 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n s\u1ebd b\u1ecb gi\u1ea3m. Do \u0111\u00f3, khi l\u1ef1a ch\u1ecdn kho\u1ea3ng c\u00e1ch tr\u1ed1ng, c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nhau c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Khi ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a chi ti\u1ebft \u0111\u1ed9t kh\u00f4ng cao th\u00ec khe h\u1edf ph\u1ea3i c\u00e0ng l\u1edbn c\u00e0ng t\u1ed1t trong ph\u1ea1m vi h\u1ee3p l\u00fd, \u0111\u1ec3 gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n v\u00e0 gi\u1ea3m l\u1ef1c \u0111\u1ed9t, l\u1ef1c \u0111\u1ea9y, l\u1ef1c d\u1ee1.<\/li><li>Khi ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a chi ti\u1ebft \u0111\u1ed9t d\u1eadp cao th\u00ec n\u00ean ch\u1ecdn gi\u00e1 tr\u1ecb nh\u1ecf h\u01a1n trong ph\u1ea1m vi khe h\u1edf h\u1ee3p l\u00fd, \u0111\u1ec3 m\u1eb7c d\u00f9 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n d\u1eadp gi\u1ea3m nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng ph\u00f4i b\u00e0o c\u1ee7a chi ti\u1ebft v\u1eabn \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o.<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Khi thi\u1ebft k\u1ebf khu\u00f4n, Z<sub>min<\/sub>&nbsp;th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 kho\u1ea3ng tr\u1ed1ng ban \u0111\u1ea7u, ch\u1ee7 y\u1ebfu xem x\u00e9t r\u1eb1ng khu\u00f4n n\u00ean \u0111\u01b0\u1ee3c m\u00e0i s\u1eafc sau m\u1ed9t kho\u1ea3ng th\u1eddi gian. Sau khi m\u00e0i, khe h\u1edf s\u1ebd t\u0103ng l\u00ean v\u00e0 l\u00e0m cho qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i t\u1eeb Z<sub>min<\/sub>&nbsp;\u0111\u1ebfn Z<sub>t\u1ed1i \u0111a<\/sub>. Do \u0111\u00f3, \u0111\u1ec3 khu\u00f4n c\u00f3 th\u1ec3 \u0111\u1ee5c l\u1ed7 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ee7 ti\u00eau chu\u1ea9n trong m\u1ed9t kho\u1ea3ng th\u1eddi gian t\u01b0\u01a1ng \u0111\u1ed1i d\u00e0i, t\u0103ng hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng c\u1ee7a khu\u00f4n v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t, Z<sub>min<\/sub>&nbsp;th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m khe h\u1edf ban \u0111\u1ea7u khi thi\u1ebft k\u1ebf khu\u00f4n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>T\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a m\u00e9p khu\u00f4n l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i. Gi\u00e1 tr\u1ecb khe h\u1edf h\u1ee3p l\u00fd c\u1ee7a khu\u00f4n c\u0169ng \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1edfi k\u00edch th\u01b0\u1edbc m\u00e9p khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m v\u00e0 dung sai c\u1ee7a ch\u00fang. Do \u0111\u00f3, vi\u1ec7c x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a c\u00e1c m\u00e9p c\u1eaft c\u1ee7a khu\u00f4n d\u1eadp l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 quan tr\u1ecdng trong thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp ph\u00f4i.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Nguy\u00ean t\u1eafc t\u00ednh to\u00e1n<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u1ed3n t\u1ea1i khe h\u1edf gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m l\u00e0m cho m\u1eb7t c\u1eaft c\u1ee7a ph\u1ea7n ph\u00f4i b\u1ecb thon d\u1ea7n, do \u0111\u00f3 vi\u1ec7c \u0111o k\u00edch th\u01b0\u1edbc v\u00e0 s\u1eed d\u1ee5ng ph\u1ea7n ph\u00f4i d\u1ef1a v\u00e0o k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111ai s\u00e1ng. D\u1ea3i s\u00e1ng c\u1ee7a ph\u1ea7n tr\u1ed1ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch c\u1eaft v\u1eadt li\u1ec7u b\u1eb1ng l\u01b0\u1ee1i c\u1eaft c\u1ee7a khu\u00f4n, v\u00e0 d\u1ea3i s\u00e1ng c\u1ee7a ph\u1ea7n \u0111\u1ed9t \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch c\u1eaft v\u1eadt li\u1ec7u b\u1eb1ng l\u01b0\u1ee1i c\u1eaft c\u1ee7a khu\u00f4n. Do \u0111\u00f3, vi\u1ec7c thi\u1ebft k\u1ebf c\u00e1c k\u00edch th\u01b0\u1edbc c\u1ea1nh l\u1ed3i v\u00e0 l\u00f5m c\u1ea7n ph\u00e2n bi\u1ec7t gi\u1eefa \u0111\u1ed9t l\u1ed7 v\u00e0 kho\u00e9t l\u1ed7, v\u00e0 tu\u00e2n theo c\u00e1c nguy\u00ean t\u1eafc sau.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>X\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a l\u01b0\u1ee1i c\u1eaft c\u1ee7a khu\u00f4n tham chi\u1ebfu.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khu\u00f4n c\u1eaft ph\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc \u0111\u1ea7u ti\u00ean c\u1ee7a l\u01b0\u1ee1i c\u1eaft c\u1ee7a khu\u00f4n d\u1eadp l\u00f5m. Kho\u1ea3ng tr\u1ed1ng \u0111\u01b0\u1ee3c l\u1ea5y tr\u00ean khu\u00f4n l\u1ed3i d\u1ef1a tr\u00ean khu\u00f4n l\u00f5m, v\u00e0 kho\u1ea3ng tr\u1ed1ng \u0111\u01b0\u1ee3c l\u1ea5y b\u1eb1ng c\u00e1ch gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n l\u1ed3i. Khi thi\u1ebft k\u1ebf khu\u00f4n \u0111\u1ed9t, \u0111\u1ea7u ti\u00ean x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a l\u01b0\u1ee1i \u0111\u1ed9t, l\u1ea5y \u0111\u1ed9t l\u00e0m chu\u1ea9n v\u00e0 l\u1ea5y kho\u1ea3ng tr\u1ed1ng tr\u00ean khu\u00f4n. Kho\u1ea3ng c\u00e1ch \u0111\u1ed9t l\u1ed7 c\u00f3 \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch t\u0103ng k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Tu\u00e2n theo quy lu\u1eadt m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Trong qu\u00e1 tr\u00ecnh ch\u1ea7n, c\u00e1c khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m c\u1ecd x\u00e1t v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ho\u1eb7c ch\u1ea5t th\u1ea3i c\u1ee7a ph\u00f4i. \u0110\u01b0\u1eddng vi\u1ec1n c\u1ee7a khu\u00f4n l\u1ed3i ng\u00e0y c\u00e0ng nh\u1ecf, \u0111\u01b0\u1eddng vi\u1ec1n c\u1ee7a khu\u00f4n l\u00f5m c\u00e0ng l\u1edbn, khe h\u1edf gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u00e0ng l\u1edbn. Khi thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp ph\u00f4i, k\u00edch th\u01b0\u1edbc ban \u0111\u1ea7u c\u1ee7a khu\u00f4n ph\u1ea3i g\u1ea7n b\u1eb1ng ho\u1eb7c b\u1eb1ng k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u c\u1ee7a ph\u00f4i; khi thi\u1ebft k\u1ebf khu\u00f4n \u0111\u1ed9t l\u1ed7, k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a \u0111\u1ed9t l\u1ed7 ph\u1ea3i g\u1ea7n b\u1eb1ng ho\u1eb7c b\u1eb1ng k\u00edch th\u01b0\u1edbc gi\u1edbi h\u1ea1n l\u1edbn nh\u1ea5t c\u1ee7a l\u1ed7 ph\u00f4i. B\u1ea5t k\u1ec3 \u0111\u1ee5c l\u1ed7 hay \u0111\u1ee5c l\u1ed7, khe h\u1edf ph\u00f4i th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 gi\u00e1 tr\u1ecb khe h\u1edf h\u1ee3p l\u00fd nh\u1ecf nh\u1ea5t Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1 tr\u1eef m\u00f2n khu\u00f4n li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ebf t\u1ea1o c\u1ee7a ph\u00f4i. \u0110\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng x\u0394, \u0394 l\u00e0 gi\u00e1 tr\u1ecb dung sai c\u1ee7a ph\u00f4i v\u00e0 x l\u00e0 h\u1ec7 s\u1ed1 m\u00f2n, v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 n\u1eb1m trong kho\u1ea3ng t\u1eeb 0,5 \u0111\u1ebfn 1. C\u00e1c nguy\u00ean t\u1eafc l\u1ef1a ch\u1ecdn sau \u0111\u00e2y d\u1ef1a tr\u00ean \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ebf t\u1ea1o c\u1ee7a ph\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i tr\u00ean IT10: x = 1;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i l\u00e0 IT11 ~ IT13: x = 0,75;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i l\u00e0 IT14: x = 0,5.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Xem x\u00e9t m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ch\u1ecdn dung sai ch\u1ebf t\u1ea1o c\u1ee7a m\u00e9p khu\u00f4n ph\u1ea3i xem x\u00e9t m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n, kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i m\u00e0 c\u00f2n ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00f3 khe h\u1edf h\u1ee3p l\u00fd. gi\u00e1 tr\u1ecb. N\u00f3i chung, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n cao h\u01a1n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i t\u1eeb 2 ~ 4. \u0110\u1ed1i v\u1edbi c\u00e1c c\u1ea1nh c\u1eaft h\u00ecnh tr\u00f2n v\u00e0 h\u00ecnh vu\u00f4ng \u0111\u01a1n gi\u1ea3n, \u0111\u1ed9 l\u1ec7ch ch\u1ebf t\u1ea1o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn theo IT6 ~ IT7; \u0111\u1ed1i v\u1edbi c\u00e1c c\u1ea1nh c\u1eaft ph\u1ee9c t\u1ea1p, sai l\u1ec7ch ch\u1ebf t\u1ea1o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn theo 1\/4 gi\u00e1 tr\u1ecb dung sai c\u1ee7a ph\u1ea7n t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ph\u00f4i; \u0111\u1ed1i v\u1edbi c\u00e1c c\u1ea1nh c\u1eaft N\u1ebfu k\u00edch th\u01b0\u1edbc c\u1ee7a mi\u1ec7ng kh\u00f4ng thay \u0111\u1ed5i sau khi m\u00e0i m\u00f2n, gi\u00e1 tr\u1ecb sai l\u1ec7ch ch\u1ebf t\u1ea1o c\u00f3 th\u1ec3 b\u1eb1ng 1\/8 gi\u00e1 tr\u1ecb dung sai c\u1ee7a ph\u1ea7n t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ph\u00f4i v\u00e0 c\u00f3 ti\u1ec1n t\u1ed1 l\u00e0 \u201c\u00b1\u201d.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ghi nh\u00e3n dung n\u1ea1p tu\u00e2n theo nguy\u00ean t\u1eafc \u201cv\u00e0o th\u00e2n\u201d<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dung sai k\u00edch th\u01b0\u1edbc ph\u00f4i v\u00e0 \u0111\u1ed9 l\u1ec7ch ch\u1ebf t\u1ea1o c\u1ee7a k\u00edch th\u01b0\u1edbc m\u00e9p khu\u00f4n v\u1ec1 nguy\u00ean t\u1eafc ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 dung sai m\u1ed9t chi\u1ec1u theo nguy\u00ean t\u1eafc \u201cnh\u1eadp v\u00e0o th\u00e2n\u201d. Nguy\u00ean t\u1eafc \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cc\u01a1 th\u1ec3 ng\u01b0\u1eddi\u201d c\u00f3 ngh\u0129a l\u00e0 ch\u1ec9 s\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u theo h\u01b0\u1edbng c\u1ee7a th\u1ef1c th\u1ec3 v\u1eadt li\u1ec7u khi dung sai k\u00edch th\u01b0\u1edbc ph\u00f4i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c k\u00edch th\u01b0\u1edbc kh\u00f4ng thay \u0111\u1ed5i sau khi m\u00e0i m\u00f2n, \u0111\u1ed9 l\u1ec7ch hai chi\u1ec1u th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc m\u00e9p c\u1eaft c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u1ea7n xem x\u00e9t c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u1ebf t\u1ea1o khu\u00f4n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>T\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft c\u1ee7a <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">c\u00fa \u0111\u1ea5m<\/a> v\u00e0 ch\u1ebft<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Do ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng khu\u00f4n b\u1ebf kh\u00e1c nhau n\u00ean c\u00e1ch t\u00ednh k\u00edch th\u01b0\u1edbc l\u01b0\u1ee1i c\u1eaft c\u0169ng kh\u00e1c nhau, v\u1ec1 c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 chia th\u00e0nh hai lo\u1ea1i.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng ri\u00eang theo khu\u00f4n m\u1eabu \u0111\u1ed9t l\u1ed7 v\u00e0 khu\u00f4n l\u00f5m.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ch\u1ee7 y\u1ebfu th\u00edch h\u1ee3p cho c\u00e1c ph\u00f4i tr\u00f2n ho\u1eb7c \u0111\u01a1n gi\u1ea3n v\u00e0 c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u1ec1u \u0111\u1eb7n. B\u1edfi v\u00ec c\u00e1c khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m \u0111\u1ec3 gia c\u00f4ng ph\u00f4i nh\u01b0 v\u1eady t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c d\u1ec5 \u0111\u1ea3m b\u1ea3o, qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ri\u00eang bi\u1ec7t \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. Khi thi\u1ebft k\u1ebf, k\u00edch th\u01b0\u1edbc v\u00e0 dung sai ch\u1ebf t\u1ea1o c\u1ee7a c\u00e1c c\u1ea1nh c\u1eaft \u0111\u1ed9t d\u1eadp v\u00e0 khu\u00f4n d\u1eadp ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean b\u1ea3n v\u1ebd.<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>s\u1ef1 \u0111\u1ea5m \u0111\u00e1.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a l\u1ed7 chi ti\u1ebft \u0111\u01b0\u1ee3c \u0111\u1ee5c l\u1ed7 l\u00e0 d<sub>0<\/sub><sup>+ \u0394<\/sup>. Theo nguy\u00ean t\u1eafc t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc l\u01b0\u1ee1i c\u1eaft, c\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Khu\u00f4n l\u1ed3i: d<sub>P<\/sub>= (1 + x\u0394)<sup>0<\/sup><sub>-p<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-3)<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Ch\u1ebft<sub>d<\/sub>= (d + x\u0394 + Z<sub>min<\/sub>)<sub>0<\/sub><sup>+ \u03b4<\/sup><sup>d<\/sup><sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/sup>&nbsp;(2-4)<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>L\u00e0m tr\u1eafng.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed k\u00edch th\u01b0\u1edbc kho\u1ea3ng tr\u1ed1ng c\u1ee7a ph\u1ea7n tr\u1ed1ng l\u00e0 D<sup>0<\/sup><sub>-\u0394<\/sub>. Theo nguy\u00ean t\u1eafc t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc l\u01b0\u1ee1i c\u1eaft, c\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Ch\u1ebft<sub>d<\/sub>= (D-x\u0394)<sub>0<\/sub><sup>+ \u03b4d<\/sup><sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/sup>&nbsp;(2-5)<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">\u0110\u1ea5m: D<sub>P<\/sub>= (D-x\u0394-Z<sub>min<\/sub>)<sup>0<\/sup><sub>-p<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-6)<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>Kho\u1ea3ng c\u00e1ch trung t\u00e2m.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng c\u00e1ch t\u00e2m l\u00e0 m\u1ed9t k\u00edch th\u01b0\u1edbc v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng thay \u0111\u1ed5i sau khi m\u00e0i m\u00f2n. Trong c\u00f9ng m\u1ed9t b\u01b0\u1edbc, kho\u1ea3ng c\u00e1ch l\u1ed7 \u0111\u01b0\u1ee3c \u0111\u1ee5c l\u1ed7 tr\u00ean ph\u00f4i v\u00e0 kho\u1ea3ng c\u00e1ch t\u00e2m c\u1ee7a l\u1ed7 m\u00f4 h\u00ecnh l\u00f5m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">L<sub>d<\/sub>= L + 1\/8 \u0394 (2-7)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00f4ng th\u1ee9c (2-3) ~ c\u00f4ng th\u1ee9c (2-7):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D, d-k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a ph\u00f4i gia c\u00f4ng \u0111\u1ed9t l\u1ed7 v\u00e0 ph\u00f4i, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D<sub>P<\/sub>, D<sub>d<\/sub>\u2014- m\u00e0i b\u00f3ng l\u1ed3i v\u00e0 l\u00f5m k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d<sub>P<\/sub>, d<sub>d<\/sub>\u2014- \u0111\u1ed9t l\u1ed7 l\u1ed3i v\u00e0 l\u00f5m k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L<sub>d<\/sub>, L \u2014- k\u00edch th\u01b0\u1edbc danh ngh\u0129a c\u1ee7a kho\u1ea3ng c\u00e1ch t\u00e2m c\u1ee7a l\u1ed7 ph\u00f4i v\u00e0 kho\u1ea3ng c\u00e1ch t\u00e2m c\u1ee7a l\u1ed7 khu\u00f4n, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0394 \u2014- dung sai c\u1ee7a ph\u00f4i, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03b4<sub>P<\/sub>, \u03b4<sub>d<\/sub>\u2014- dung sai s\u1ea3n xu\u1ea5t c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m, dung sai c\u1ee7a c\u00fa \u0111\u1ea5m b\u1ecb lo\u1ea1i b\u1ecf, v\u00e0 dung sai c\u1ee7a khu\u00f4n l\u00f5m \u0111\u01b0\u1ee3c l\u1ea5y l\u00ean. N\u00f3i chung, n\u00f3 \u0111\u01b0\u1ee3c ch\u1ecdn theo 1\/3 ~ 1\/4 dung sai b\u1ed9 ph\u1eadn. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n (nh\u01b0 b\u1ed9 ph\u1eadn tr\u00f2n, b\u1ed9 ph\u1eadn vu\u00f4ng, v.v.), do ch\u1ebf t\u1ea1o \u0111\u01a1n gi\u1ea3n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c d\u1ec5 d\u00e0ng, dung sai ch\u1ebf t\u1ea1o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo m\u1ee9c IT8 ~ IT6 ho\u1eb7c tra B\u1ea3ng 1-7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X \u2014- H\u1ec7 s\u1ed1 m\u00e0i m\u00f2n, gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 ph\u1ea3i t\u1eeb 0,5 \u0111\u1ebfn 1, li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn tr\u1ef1c ti\u1ebfp theo m\u1ee9c dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng ho\u1eb7c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch tham kh\u1ea3o B\u1ea3ng 1-8.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z<sub>min<\/sub>\u2014- Kho\u1ea3ng tr\u1ed1ng t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">V\u1eadt ch\u1ea5t<\/td><td class=\"has-text-align-center\" data-align=\"center\">K\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0110\u1ed9 d\u00e0y<\/td><td class=\"has-text-align-center\" data-align=\"center\">~10<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e 10 ~ 50<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e 50 ~ 100<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e 100 ~ 150<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e 150 ~ 200<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">t (mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">+ \u03b4<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>P<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+ \u03b4<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>P<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+ \u03b4<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>P<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+ \u03b4<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>P<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+ \u03b4<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>P<\/sub><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.4<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.022<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.032<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.019<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.030<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.029<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.021<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.027<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.030<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.045<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.030<\/td><\/tr><\/tbody><\/table><figcaption><br>B\u1ea3ng 1-7 \u0110\u1ed9 l\u1ec7ch gi\u1edbi h\u1ea1n ch\u1ebf t\u1ea1o c\u1ee7a khu\u00f4n \u0111\u00fac l\u1ed3i v\u00e0 l\u00f5m h\u00ecnh d\u1ea1ng th\u00f4ng th\u01b0\u1eddng<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">V\u1eadt ch\u1ea5t<\/td><td class=\"has-text-align-center\" data-align=\"center\">Gi\u00e1 tr\u1ecb x c\u1ee7a ph\u00f4i kh\u00f4ng tr\u00f2n<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">Gi\u00e1 tr\u1ecb x c\u1ee7a ph\u00f4i tr\u00f2n<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0110\u1ed9 d\u00e0y<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">t (mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Dung sai ph\u00f4i \u0394 (mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,16<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.17~0.35<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,36<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,16<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,16<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1~2<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,20<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.21~0.41<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,42<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,20<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,20<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2~4<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,24<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.25~0.49<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,50<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,24<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,24<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uff1e 4<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,30<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.31~0.59<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,60<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c 0,30<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,30<\/td><\/tr><\/tbody><\/table><figcaption><br>B\u1ea3ng 1-8 H\u1ec7 s\u1ed1 m\u00f2n x<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n n\u00e0y th\u00edch h\u1ee3p cho c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i tr\u00f2n v\u00e0 h\u00ecnh d\u1ea1ng \u0111\u1ec1u. Khi thi\u1ebft k\u1ebf, k\u00edch th\u01b0\u1edbc c\u1ee7a l\u01b0\u1ee1i c\u1eaft v\u00e0 dung sai ch\u1ebf t\u1ea1o ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u t\u01b0\u01a1ng \u1ee9ng tr\u00ean b\u1ea3n v\u1ebd khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng kho\u1ea3ng c\u00e1ch tr\u1ed1ng n\u1eb1m trong m\u1ed9t ph\u1ea1m vi h\u1ee3p l\u00fd, c\u1ea7n thi\u1ebft l\u1eadp c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">| \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| \u2264 Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-8)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00f4ng th\u1ee9c tr\u00ean kh\u00f4ng ph\u00f9 h\u1ee3p, th\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o khu\u00f4n n\u00ean \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u1ec3 gi\u1ea3m \u03b4<sub>d<\/sub>&nbsp;v\u00e0 \u03b4<sub>P<\/sub>. V\u00ec v\u1eady khi h\u00ecnh d\u1ea1ng khu\u00f4n ph\u1ee9c t\u1ea1p th\u00ec ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f4ng ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>V\u00ed d\u1ee5 2-1<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">\u0110\u1ed9t d\u1eadp<\/a> \u0111o\u1ea1n k\u1ebft n\u1ed1i nh\u01b0 trong H\u00ecnh 1-9. V\u1eadt li\u1ec7u c\u1ee7a b\u1ed9 ph\u1eadn \u0111\u00e3 bi\u1ebft l\u00e0 Q235, v\u00e0 \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u l\u00e0 t = 0,5mm. T\u00ednh k\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a c\u00e1c ph\u1ea7n c\u1ea1nh l\u1ed3i v\u00e0 c\u1ea1nh l\u00f5m c\u1ee7a khu\u00f4n \u0111\u1ed9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3i ph\u00e1p: T\u1eeb h\u00ecnh 1-9 c\u00f3 th\u1ec3 th\u1ea5y b\u1ed9 ph\u1eadn n\u00e0y l\u00e0 b\u1ed9 ph\u1eadn \u0111\u1ed9t d\u1eadp v\u00e0 ph\u00f4i chung kh\u00f4ng c\u00f3 y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t, khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t ri\u00eang theo ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng ho\u00e1n \u0111\u1ed5i. K\u00edch th\u01b0\u1edbc b\u00ean ngo\u00e0i \u03c636<sup>0<\/sup><sub>-0.62<\/sub>&nbsp;thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch l\u00e0m tr\u1ed1ng, v\u00e0 k\u00edch th\u01b0\u1edbc l\u1ed7 b\u00ean trong 2-\u03c66<sub>0<\/sub><sup>+0.12<\/sup>&nbsp;v\u00e0 k\u00edch th\u01b0\u1edbc 18 \u00b1 0,09 thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch \u0111\u1ee5c l\u1ed7 c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"713\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2154\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-300x267.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-768x684.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-13x12.jpg 13w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-150x134.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-9 S\u01a1 \u0111\u1ed3 b\u1ed9 ph\u1eadn c\u1ee7a m\u1ea3nh k\u1ebft n\u1ed1i<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c \u0111\u1ecbnh khe h\u1edf ban \u0111\u1ea7u, tra b\u1ea3ng ta \u0111\u01b0\u1ee3c Z<sub>min<\/sub>= 0,04mm, Z<sub>t\u1ed1i \u0111a<\/sub>= 0,06mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 m\u00f2n x, tra b\u00e0n \u0111\u1ed9t l\u1ed7 2-\u03c66<sub>0<\/sub><sup>+0.12<\/sup>&nbsp;&nbsp;h\u1ec7 s\u1ed1 m\u00f2n x = 0,75; kho\u1ea3ng tr\u1ed1ng \u03c636<sup>0<\/sup><sub>-0.62<\/sub>, h\u1ec7 s\u1ed1 m\u00f2n x = 0,5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ea1nh l\u1ed3i, l\u00f5m \u0111\u1ed9t l\u1ed7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tra b\u1ea3ng, -\u03b4<sub>P<\/sub>= -0,004 m\u00e9t, -\u03b4<sub>d<\/sub>= -0,006 m\u00e9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft \u0111\u1ed9t: d<sub>d<\/sub>= (d + x \u0394)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>P<\/sub>= (6 + 0,75X0,12)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>P<\/sub>=6.09<sup>0<\/sup><sub>-0.004<\/sub>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n: d<sub>d<\/sub>= (d + Z<sub>min<\/sub>)<sub>0<\/sub><sup>+ \u03b4<\/sup><sup>d<\/sup>=(6.09+0.04) <sub>0<\/sub><sup>+ \u03b4<\/sup><sup>d<\/sup>=6.13<sub>0<\/sub><sup>+0.006<\/sup>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra, | \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| = 0,004 + 0,006 = 0,01mm. Z<sub>t\u1ed1i \u0111a<\/sub>-Z<sub>min<\/sub>= 0,06-0,04 = 0,02mm. \u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a | \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| \u2264 Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tra b\u1ea3ng -\u03b4<sub>P<\/sub>= 0,004mm, -\u03b4<sub>d<\/sub>= 0,006mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft khu\u00f4n: D<sub>d<\/sub>= (Dx \u0394)<sub>0<\/sub><sup>+ \u03b4<\/sup><sup>d<\/sup>= (36-0,5X0,62)<sub>0<\/sub><sup>+ \u03b4<\/sup><sup>d<\/sup>=35.69<sub>0<\/sub><sup>+0.006<\/sup>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft \u0111\u1ed9t: D<sub>P<\/sub>= (D<sub>d<\/sub>-Z<sub>min<\/sub>)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>P<\/sub>=(35.69-0.04)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>P<\/sub>=35.65<sup>0<\/sup><sub>-0.004<\/sub>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra, | \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| = 0,004 + 0,006, Z<sub>t\u1ed1i \u0111a<\/sub>-Z<sub>min<\/sub>= 0,06-0,04 = 0,02mm. \u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a | \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| \u2264 Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch t\u00e2m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L<sub>d<\/sub>= L \u00b1 \u0394 = 18 \u00b1 0,125X2X0,09 = 18 \u00b1 0,023mm<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Ph\u1ed1i h\u1ee3p x\u1eed l\u00fd ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ee5c l\u1ed7 v\u00e0 ch\u1ebft.<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Khi khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m \u0111\u01b0\u1ee3c gia c\u00f4ng ri\u00eang bi\u1ec7t, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u00e1 tr\u1ecb khe h\u1edf nh\u1ea5t \u0111\u1ecbnh gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m, dung sai ch\u1ebf t\u1ea1o c\u1ee7a khu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t. Do \u0111\u00f3, vi\u1ec7c ch\u1ebf t\u1ea1o qu\u1ea3 \u0111\u1ea5m g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n. \u0110\u1ec3 \u0111\u1ee5c l\u1ed7 c\u00e1c v\u1eadt li\u1ec7u m\u1ecfng (do s\u1ef1 kh\u00e1c bi\u1ec7t nh\u1ecf gi\u1eefa Z<sub>t\u1ed1i \u0111a<\/sub>&nbsp;v\u00e0 Z<sub>min<\/sub>), khu\u00f4n \u0111\u1ed9t l\u1ed7 cho c\u00e1c ph\u00f4i c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, v\u00e0 khu\u00f4n \u0111\u1ed9t l\u1ed7 cho s\u1ea3n xu\u1ea5t \u0111\u01a1n chi\u1ebfc, ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng h\u1ee3p t\u00e1c \u0111\u1ed9t d\u1eadp th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p h\u1ee3p t\u00e1c gi\u1eefa khu\u00f4n \u0111\u1ed9t v\u00e0 khu\u00f4n l\u00f5m l\u00e0 tr\u01b0\u1edbc h\u1ebft ch\u1ebf t\u1ea1o m\u1ed9t chi ti\u1ebft tham chi\u1ebfu (khu\u00f4n \u0111\u1ed9t ho\u1eb7c khu\u00f4n c\u00e1i) theo k\u00edch th\u01b0\u1edbc thi\u1ebft k\u1ebf, sau \u0111\u00f3 chu\u1ea9n b\u1ecb m\u1ed9t chi ti\u1ebft kh\u00e1c theo k\u00edch th\u01b0\u1edbc th\u1ef1c c\u1ee7a chi ti\u1ebft tham chi\u1ebfu theo khe h\u1edf h\u1ee3p l\u00fd t\u1ed1i thi\u1ec3u. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng n\u00e0y l\u00e0 khe h\u1edf c\u1ee7a khu\u00f4n \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1edfi qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb, qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, kh\u00f4ng c\u1ea7n ki\u1ec3m tra c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee7a | \u03b4<sub>P<\/sub>| + | \u03b4<sub>d<\/sub>| \u2264 Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>, v\u00e0 n\u00f3 c\u0169ng c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng dung sai ch\u1ebf t\u1ea1o c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tham chi\u1ebfu, gi\u00fap vi\u1ec7c s\u1ea3n xu\u1ea5t tr\u1edf n\u00ean d\u1ec5 d\u00e0ng. Khi thi\u1ebft k\u1ebf, c\u00e1c k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft v\u00e0 dung sai ch\u1ebf t\u1ea1o c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tham chi\u1ebfu ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u chi ti\u1ebft, v\u00e0 ch\u1ec9 c\u00e1c k\u00edch th\u01b0\u1edbc danh ngh\u0129a \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn ph\u00f9 h\u1ee3p v\u00e0 kh\u00f4ng c\u00f3 dung sai n\u00e0o \u0111\u01b0\u1ee3c ghi nh\u1eadn. Ch\u1ec9 n\u00ean \u0111\u00e1nh d\u1ea5u b\u1ea3n v\u1ebd: \u201cM\u00e9p c\u1eaft c\u1ee7a khu\u00f4n l\u1ed3i (l\u00f5m) nh\u01b0 l\u00f5m (l\u1ed3i) K\u00edch th\u01b0\u1edbc m\u00e9p c\u1eaft th\u1ef1c t\u1ebf c\u1ee7a khu\u00f4n \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u00e1 tr\u1ecb khe h\u1edf h\u1ee3p l\u00fd hai m\u1eb7t nh\u1ecf nh\u1ea5t Z<sub>min<\/sub>\u201c. Hi\u1ec7n nay, h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 m\u00e1y th\u01b0\u1eddng \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ph\u00f4i c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, t\u00ednh ch\u1ea5t k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed7i b\u1ed9 ph\u1eadn l\u00e0 kh\u00e1c nhau, \u0111i\u1ec1u ki\u1ec7n m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n \u0111\u1ed9t v\u00e0 khu\u00f4n d\u1eadp c\u0169ng kh\u00e1c nhau. Do \u0111\u00f3, k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft c\u1ee7a chi ti\u1ebft tham chi\u1ebfu c\u1ea7n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00ecnh 1-10 (a) cho th\u1ea5y<a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\"> ph\u1ea7n tr\u1ed1ng<\/a>. Con s\u00fac s\u1eafc n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a ph\u00e9p t\u00ednh. Tuy nhi\u00ean, \u0111\u1ed9 m\u00f2n c\u1ee7a khu\u00f4n \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i: Lo\u1ea1i th\u1ee9 nh\u1ea5t l\u00e0 k\u00edch th\u01b0\u1edbc t\u0103ng l\u00ean c\u1ee7a khu\u00f4n sau khi m\u00e0i m\u00f2n (trong h\u00ecnh) Size-A); Lo\u1ea1i th\u1ee9 hai l\u00e0 lo\u1ea1i gi\u1ea3m k\u00edch th\u01b0\u1edbc sau khi khu\u00f4n b\u1ecb m\u00f2n (k\u00edch th\u01b0\u1edbc B trong h\u00ecnh); Lo\u1ea1i th\u1ee9 ba l\u00e0 k\u00edch th\u01b0\u1edbc kh\u00f4ng thay \u0111\u1ed5i sau khi khu\u00f4n \u0111\u01b0\u1ee3c m\u00e0i m\u00f2n (k\u00edch th\u01b0\u1edbc C trong h\u00ecnh). H\u00ecnh 1-10 (b) cho th\u1ea5y ph\u1ea7n \u0111\u1ed9t d\u1eadp. C\u00fa \u0111\u1ea5m n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ph\u1ea7n tham chi\u1ebfu. Theo \u0111\u1ed9 m\u00f2n c\u1ee7a qu\u1ea3 \u0111\u1ea5m, c\u00e1c k\u00edch th\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i: A, B v\u00e0 C theo ph\u01b0\u01a1ng ph\u00e1p th\u1ec3 hi\u1ec7n trong h\u00ecnh. Khi qu\u1ea3 \u0111\u1ea5m b\u1ecb m\u00f2n, s\u1ef1 t\u0103ng gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi quy lu\u1eadt k\u00edch th\u01b0\u1edbc lo\u1ea1i A t\u0103ng, k\u00edch th\u01b0\u1edbc lo\u1ea1i B gi\u1ea3m, k\u00edch th\u01b0\u1edbc lo\u1ea1i C kh\u00f4ng \u0111\u1ed5i. Theo c\u00e1ch n\u00e0y, \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn doa v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9t c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft c\u1ee7a b\u1ed9 ph\u1eadn tham chi\u1ebfu c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">K\u00edch th\u01b0\u1edbc lo\u1ea1i A: A = (A<sub>t\u1ed1i \u0111a<\/sub>-x \u0394)<sub>0<\/sub><sup>+ \u03b4<\/sup><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">K\u00edch th\u01b0\u1edbc lo\u1ea1i B: B = (B<sub>min<\/sub>+ x \u0394)<sup>0<\/sup><sub>-\u03b4<\/sub><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">K\u00edch th\u01b0\u1edbc lo\u1ea1i C: C = C \u00b1 \u03b4 \/ 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00f4ng th\u1ee9c, A, B, C-k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tham chi\u1ebfu, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed8T<sub>t\u1ed1i \u0111a<\/sub><sub>&nbsp;<\/sub>\u2014- Gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n l\u1edbn nh\u1ea5t c\u1ee7a k\u00edch th\u01b0\u1edbc lo\u1ea1i A c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B<sub>min<\/sub><sub>&nbsp;<\/sub>\u2014- Gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n nh\u1ecf nh\u1ea5t c\u1ee7a k\u00edch th\u01b0\u1edbc lo\u1ea1i B c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03b4 \u2014- Dung sai ch\u1ebf t\u1ea1o khu\u00f4n, mm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"276\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2156\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-150x52.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-300x104.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-768x265.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-600x207.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-10 Ph\u00e2n lo\u1ea1i k\u00edch th\u01b0\u1edbc \u0111\u1ee5c l\u1ed7 v\u00e0 \u0111\u1ee5c l\u1ed7<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>V\u00ed d\u1ee5 2-2<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n tr\u1ed1ng th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-11, v\u1eadt li\u1ec7u l\u00e0 th\u00e9p s\u1ed1 10, \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u l\u00e0 1mm, v\u00e0 k\u00edch th\u01b0\u1edbc a = 80<sup>0<\/sup><sub>-0.42<\/sub>mm, b = 40<sup>0<\/sup><sub>-.034<\/sub>mm, c = 35<sup>0<\/sup><sub>-.034<\/sub>mm, d = 22 \u00b1 0,14 mm, e = 15<sup>0<\/sup><sub>-.012<\/sub>mm. C\u1ed1 g\u1eafng x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a c\u00fa \u0111\u1ea5m v\u00e0 c\u1ea1nh ch\u1ebft c\u1ee7a khu\u00f4n \u0111\u1ed9t.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2157\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-150x84.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-300x169.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-768x432.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-11 B\u1ea3n v\u1ebd c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn tr\u1ed1ng<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3i ph\u00e1p: <a href=\"https:\/\/www.harslepress.com\/vi\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">t\u1ea9y tr\u1eafng<\/a> m\u1ed9t ph\u1ea7n l\u00e0 b\u1ed9 ph\u1eadn ph\u00f4i, v\u00e0 khu\u00f4n c\u00e1i \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m b\u1ed9 ph\u1eadn tham chi\u1ebfu, v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo ph\u01b0\u01a1ng ph\u00e1p ph\u1ed1i h\u1ee3p gi\u1eefa khu\u00f4n \u0111\u1ef1c v\u00e0 khu\u00f4n c\u00e1i. Vi\u1ec7c t\u00ednh to\u00e1n ch\u1ec9 c\u1ea7n x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ea1nh c\u1eaft v\u00e0 dung sai ch\u1ebf t\u1ea1o c\u1ee7a khu\u00f4n d\u1eadp ph\u00f4i, v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ea1nh \u0111\u1ed9t \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo k\u00edch th\u01b0\u1edbc th\u1ef1c t\u1ebf c\u1ee7a khu\u00f4n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00f9 h\u1ee3p khe h\u1edf nh\u1ecf nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c \u0111\u1ecbnh khe h\u1edf ban \u0111\u1ea7u: Z<sub>min<\/sub>= 0,10mm, Z<sub>t\u1ed1i \u0111a<\/sub>= 0,13mm b\u1eb1ng c\u00e1ch tra b\u1ea3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 m\u00f2n x: tra b\u1ea3ng a = 80<sup>0<\/sup><sub>-0.42<\/sub>, h\u1ec7 s\u1ed1 m\u00f2n x = 0,5; k\u00edch th\u01b0\u1edbc e = 15<sup>0<\/sup><sub>-0.12<\/sub>mm, h\u1ec7 s\u1ed1 m\u00f2n x = 10; h\u1ec7 s\u1ed1 m\u00f2n kh\u00e1c \u1ea5n x = 0,75.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i A k\u00edch th\u01b0\u1edbc: a<sub>d<\/sub>= (a-x\u0394)<sub>0<\/sub><sup>+ \u03b4<\/sup>= (80-0,5X0,042)<sub>0<\/sub><sup>+0.42\/4<\/sup>=79.79<sub>0<\/sub><sup>+0.105<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b<sub>d<\/sub>= (b-x\u0394)<sub>0<\/sub><sup>+ \u03b4<\/sup>= (40-0,75X0,34)<sub>0<\/sub><sup>+0.<\/sup><sup>34<\/sup><sup>\/4<\/sup>=39.75<sub>0<\/sub><sup>+0.<\/sup><sup>08<\/sup><sup>5<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c<sub>d<\/sub>= (c-x\u0394)<sub>0<\/sub><sup>+ \u03b4<\/sup>= (35-0,14 + 0,75X0,34)<sub>0<\/sub><sup>+0.<\/sup><sup>34<\/sup><sup>\/4<\/sup>=34.75<sub>0<\/sub><sup>+0.<\/sup><sup>08<\/sup><sup>5<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc lo\u1ea1i B: d<sub>d<\/sub>= (d<sub>min<\/sub>+ x\u0394)<sup>0<\/sup><sub>-\u03b4<\/sub>= (22-0,14 + 0,75X0,28)<sup>0<\/sup><sub>-0.28\/4<\/sub>=22.07<sup>0<\/sup><sub>-0.<\/sub><sub>070<\/sub>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ee1 C: Khi c\u1ee1 C v\u1edbi \u0111\u1ed9 m\u00f2n li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 \u0111\u1ed9 l\u1ec7ch m\u1ed9t chi\u1ec1u, c\u00f3 hai tr\u01b0\u1eddng h\u1ee3p, C<sup>0<\/sup><sub>-\u0394<\/sub>&nbsp;v\u00e0 C<sub>0<\/sub><sup>+ \u0394<\/sup>. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, k\u00edch th\u01b0\u1edbc trung b\u00ecnh gi\u1edbi h\u1ea1n c\u1ee7a C \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o ph\u01b0\u01a1ng tr\u00ecnh, v\u00e0 sau \u0111\u00f3<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2158\" width=\"800\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811.png 428w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-300x32.png 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-18x2.png 18w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-150x16.png 150w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a <a href=\"https:\/\/www.harslepress.com\/vi\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">c\u00fa \u0111\u1ea5m tr\u1ed1ng<\/a> gi\u1ed1ng v\u1edbi k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a khu\u00f4n l\u00f5m l\u1ea7n l\u01b0\u1ee3t l\u00e0 79,79 mm, 39,75 mm, 34,75 mm, 26,07 mm, 14,94 mm. Kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i \u0111\u00e1nh d\u1ea5u sai l\u1ec7ch k\u00edch th\u01b0\u1edbc, nh\u01b0ng c\u1ea7n l\u01b0u \u00fd trong khu\u00f4n: k\u00edch th\u01b0\u1edbc l\u01b0\u1ee1i c\u1eaft th\u1ef1c t\u1ebf c\u1ee7a \u0111\u1ed9t N\u00f3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi khu\u00f4n d\u1eadp ph\u00f4i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o khe h\u1edf gi\u1eefa hai m\u1eb7t l\u00e0 0,10 ~ 0,13 mm. K\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n d\u1eadp ph\u00f4i v\u00e0 khu\u00f4n \u0111\u1ed9t \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-12.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"372\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2159\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-150x70.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-300x140.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-768x357.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-600x279.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>H\u00ecnh 1-12 K\u00edch th\u01b0\u1edbc khu\u00f4n d\u1eadp v\u00e0 khu\u00f4n \u0111\u1ee5c l\u1ed7<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Nguy\u00ean t\u1eafc l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t.<\/li><\/ul>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>1. Khi chi ti\u1ebft ph\u00f4i c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p (s\u1ed1 l\u01b0\u1ee3ng k\u00edch th\u01b0\u1edbc l\u1edbn), m\u00e9p khu\u00f4n \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng \u0103n kh\u1edbp.<\/strong><strong><\/strong><\/h6>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>2. Khi <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">t\u1ea9y tr\u1eafng <\/a>m\u1ed9t ph\u1ea7n c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n (s\u1ed1 l\u01b0\u1ee3ng k\u00edch th\u01b0\u1edbc nh\u1ecf), h\u00e3y ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t c\u1eaft c\u1ea1nh theo ph\u00e2n bi\u1ec7t sau.<\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u03b4<sub>P<\/sub>&nbsp;+ \u03b4<sub>d<\/sub>&gt; Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>, c\u1ea1nh khu\u00f4n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u03b4<sub>P<\/sub>&nbsp;+ \u03b4<sub>d<\/sub>&nbsp;\u2264 Z<sub>t\u1ed1i \u0111a<\/sub>- Z<sub>min<\/sub>, l\u01b0\u1ee1i c\u1eaft c\u1ee7a khu\u00f4n \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng ri\u00eang bi\u1ec7t.<\/p>","protected":false},"excerpt":{"rendered":"<p>Under normal blanking working conditions, the shear cracks produced by the edge of the punch and the shear cracks produced<\/p>","protected":false},"author":4,"featured_media":2202,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[606,610,609],"class_list":["post-2007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-punching-machine","tag-punching","tag-punching-gap","tag-punching-section"],"jetpack_featured_media_url":"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16190672721.jpg","_links":{"self":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/2007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/comments?post=2007"}],"version-history":[{"count":0,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/2007\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media\/2202"}],"wp:attachment":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media?parent=2007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/categories?post=2007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/tags?post=2007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}