{"id":2738,"date":"2021-06-22T03:46:22","date_gmt":"2021-06-22T03:46:22","guid":{"rendered":"https:\/\/pj4iaixa9m.wpdns.site\/?p=2738"},"modified":"2021-06-25T09:32:12","modified_gmt":"2021-06-25T09:32:12","slug":"13-quick-tips-for-design-and-structure-of-the-punch-drawing-die","status":"publish","type":"post","link":"https:\/\/www.harslepress.com\/vi\/13-quick-tips-for-design-and-structure-of-the-punch-drawing-die\/","title":{"rendered":"13 m\u1eb9o nhanh \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n v\u1ebd \u0111\u1ed9t"},"content":{"rendered":"

<\/span>Th\u1eddi gian \u0111\u1ecdc \u01b0\u1edbc t\u00ednh: <\/span>15<\/span> ph\u00fat<\/span><\/p>\n\n\n\n

Thi\u1ebft k\u1ebf ph\u1ea7n l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd<\/strong><\/strong><\/h3>\n\n\n\n

Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n c\u00e1i<\/strong><\/strong><\/h4>\n\n\n\n

C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n v\u1ebd c\u00fa \u0111\u1ea5m<\/a> v\u00e0 khu\u00f4n ph\u1ee5 thu\u1ed9c v\u00e0o h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a ph\u00f4i, ph\u01b0\u01a1ng ph\u00e1p v\u1ebd, s\u1ed1 l\u01b0\u1ee3ng qu\u00e1 tr\u00ecnh v\u1ebd v\u00e0 c\u00e1c y\u00eau c\u1ea7u kh\u00e1c c\u1ee7a qu\u00e1 tr\u00ecnh. C\u00e1c d\u1ea1ng k\u1ebft c\u1ea5u kh\u00e1c nhau c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn bi\u1ebfn d\u1ea1ng b\u1ea3n v\u1ebd, m\u1ee9c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m. \u1ea2nh h\u01b0\u1edfng kh\u00e1c nhau. C\u1ea5u t\u1ea1o c\u1ee7a c\u00e1c lo\u1ea1i khu\u00f4n l\u1ed3i l\u00f5m th\u00f4ng d\u1ee5ng nh\u01b0 sau.<\/p>\n\n\n\n

\"1-
1- Tr\u1ee5c khu\u1ef7u; 2- Cam; 3- Con tr\u01b0\u1ee3t ngo\u00e0i; 4- Con tr\u01b0\u1ee3t trong; 5- \u0110\u1ee5c; 6-V\u00f2ng tr\u1ed1ng; 7- Khu\u00f4n c\u00e1i<\/figcaption><\/figure><\/div>\n\n\n\n
H\u00ecnh th\u1ee9c c\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd m\u00e0 kh\u00f4ng c\u1ea7n v\u1eadt li\u1ec7u \u00e9p<\/strong><\/strong><\/h5>\n\n\n\n

H\u00ecnh 1-2 cho th\u1ea5y c\u1ea5u tr\u00fac khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ea3n v\u1ebd s\u00e2u m\u1ed9t l\u1ea7n m\u00e0 kh\u00f4ng c\u00f3 gi\u00e1 \u0111\u1ee1 tr\u1ed1ng. Khu\u00f4n d\u1eadp h\u00ecnh v\u00f2ng cung trong h\u00ecnh 1-2 (a) c\u00f3 c\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n v\u00e0 gia c\u00f4ng thu\u1eadn ti\u1ec7n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn. C\u1ea5u t\u1ea1o c\u1ee7a khu\u00f4n \u0111\u00fac l\u00f5m v\u1ebd s\u00e2u. Khu\u00f4n c\u1eaft c\u00f4n v\u00e0 khu\u00f4n b\u1ebf h\u00ecnh 1-2 (b) v\u00e0 h\u00ecnh (c) c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 ch\u1ed1ng m\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 nh\u0103n, nh\u01b0ng qu\u00e1 tr\u00ecnh gia c\u00f4ng ph\u1ee9c t\u1ea1p v\u00e0 ch\u00fang ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1ebd c\u00e1c chi ti\u1ebft c\u00f3 h\u1ec7 s\u1ed1 v\u1ebd nh\u1ecf. H\u00ecnh 1-2 (d) cho th\u1ea5y c\u1ea5u tr\u00fac \u0111\u1eb3ng \u00e1p.<\/p>\n\n\n\n

\"H\u00ecnh
H\u00ecnh 1-2 C\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n l\u00f5m c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u \u00e9p<\/figcaption><\/figure><\/div>\n\n\n\n
H\u00ecnh th\u1ee9c c\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd v\u1edbi v\u1eadt li\u1ec7u \u00e9p<\/strong><\/strong><\/h5>\n\n\n\n

H\u00ecnh 1-3 cho th\u1ea5y c\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n \u0111\u1ef1c v\u00e0 khu\u00f4n c\u00e1i v\u1edbi gi\u00e1 \u0111\u1ee1 tr\u1ed1ng. Khu\u00f4n \u0111\u1ef1c v\u00e0 khu\u00f4n c\u00e1i th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-3 (a) c\u00f3 c\u00e1c g\u00f3c tr\u00f2n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1ebd v\u1edbi \u0111\u01b0\u1eddng k\u00ednh d\u2264100mm. Mi\u1ebfng. Khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m trong h\u00ecnh 1-3 (b) c\u00f3 c\u1ea5u t\u1ea1o g\u00f3c c\u00f4n v\u00e0 d\u00f9ng \u0111\u1ec3 v\u1ebd c\u00e1c chi ti\u1ebft c\u00f3 r\u00e3nh s\u00e2u c\u00f3 \u0111\u01b0\u1eddng k\u00ednh d\u2265100mm. Vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t c\u00fa \u0111\u1ea5m<\/a> v\u00e0 khu\u00f4n d\u1eadp v\u1edbi g\u00f3c c\u00f4n kh\u00f4ng ch\u1ec9 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u1ea3y c\u1ee7a kim lo\u1ea1i, gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng, v\u1eadt li\u1ec7u kh\u00f4ng d\u1ec5 m\u1ecfng v\u00e0 c\u00e1c t\u00ednh n\u0103ng khu\u00f4n d\u1ea1ng c\u00f4n n\u00f3i chung kh\u00e1c, m\u00e0 c\u00f2n c\u00f3 th\u1ec3 gi\u1ea3m m\u1ee9c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng u\u1ed1n l\u1eb7p l\u1ea1i c\u1ee7a ph\u00f4i v\u00e0 c\u1ea3i thi\u1ec7n m\u1eb7t b\u00ean Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a b\u1ee9c t\u01b0\u1eddng gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed tr\u1ed1ng trong qu\u00e1 tr\u00ecnh ti\u1ebfp theo.<\/p>\n\n\n\n

\"H\u00ecnh
H\u00ecnh 1-3 C\u1ea5u tr\u00fac b\u1ed9 ph\u1eadn l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd c\u00f3 tr\u1ed1ng<\/figcaption><\/figure><\/div>\n\n\n\n

B\u1ea5t k\u1ec3 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn s\u1ef1 ph\u1ed1i h\u1ee3p gi\u1eefa h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111\u1ea5m \u0111\u00e1 <\/a>ch\u1ebft trong hai qu\u00e1 tr\u00ecnh tr\u01b0\u1edbc, do \u0111\u00f3 h\u00ecnh d\u1ea1ng c\u1ee7a b\u00e1n th\u00e0nh ph\u1ea9m thu \u0111\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3 c\u00f3 l\u1ee3i cho vi\u1ec7c h\u00ecnh th\u00e0nh c\u1ee7a qu\u00e1 tr\u00ecnh ti\u1ebfp theo. V\u00ed d\u1ee5, h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a gi\u00e1 \u0111\u1ee1 tr\u1ed1ng ph\u1ea3i gi\u1ed1ng v\u1edbi ph\u1ea7n t\u01b0\u01a1ng \u1ee9ng c\u1ee7a \u0111\u1ed9t trong quy tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 g\u00f3c c\u00f4n \u03b1 c\u1ee7a khu\u00f4n d\u1eadp s\u00e2u c\u0169ng ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi g\u00f3c c\u00f4n c\u1ee7a \u0111\u1ed9t trong quy tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n\n\n\n

\u0110\u1ec3 l\u00e0m cho \u0111\u00e1y c\u1ee7a b\u1ed9 ph\u1eadn ph\u1eb3ng sau l\u1ea7n v\u1ebd cu\u1ed1i c\u00f9ng, n\u1ebfu n\u00f3 l\u00e0 c\u00fa \u0111\u1ea5m<\/a> v\u1edbi c\u1ea5u tr\u00fac tr\u00f2n, t\u00e2m c\u1ee7a b\u00e1n k\u00ednh g\u00f3c c\u1ee7a \u0111\u1ed9t l\u1ed7 v\u1ebd cu\u1ed1i c\u00f9ng ph\u1ea3i n\u1eb1m tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng v\u1edbi t\u00e2m c\u1ee7a b\u00e1n k\u00ednh g\u00f3c c\u1ee7a \u0111\u1ed9t l\u1ed7 v\u1ebd \u00e1p ch\u00f3t th\u1ee9 hai. \u0110\u01b0\u1eddng t\u00e2m. N\u1ebfu \u0111\u00f3 l\u00e0 c\u1ea5u tr\u00fac khu\u00f4n xi\u00ean, \u0111\u01b0\u1eddng xi\u00ean \u1edf d\u01b0\u1edbi c\u00f9ng c\u1ee7a c\u00fa \u0111\u1ea5m c\u1ee7a qu\u00e1 tr\u00ecnh \u00e1p ch\u00f3t ph\u1ea3i ti\u1ebfp tuy\u1ebfn v\u1edbi b\u00e1n k\u00ednh phi l\u00ea c\u1ee7a c\u00fa \u0111\u1ea5m cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n

B\u1ea5t k\u1ec3 khu\u00f4n b\u1ea3n v\u1ebd c\u00f3 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb \u00e9p hay kh\u00f4ng, \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n th\u00e1o ph\u00f4i, v\u1ebd c\u00fa \u0111\u1ea5m<\/a> ph\u1ea3i \u0111\u01b0\u1ee3c khoan c\u00e1c l\u1ed7 kh\u00ed, k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\n\n\n

\u0110\u01b0\u1eddng k\u00ednh \u0111\u1ed9t<\/td>\uff1e 50<\/td>\uff1e 50 ~ 100<\/td>\uff1e 100 ~ 200<\/td>\uff1e 200<\/td><\/tr>
\u0110\u01b0\u1eddng k\u00ednh \u0111\u1ea7u ra<\/td>5<\/td>6.5<\/td>8<\/td>9.5<\/td><\/tr><\/tbody><\/table>
B\u1ea3ng 1-1 K\u00edch th\u01b0\u1edbc l\u1ed7 th\u00f4ng gi\u00f3 (\u0111\u01a1n v\u1ecb: mm)<\/figcaption><\/figure>\n\n\n\n

V\u1ebd kho\u1ea3ng c\u00e1ch ch\u1ebft<\/strong><\/strong><\/h4>\n\n\n\n

Khe h\u1edf khu\u00f4n v\u1ebd d\u00f9ng \u0111\u1ec3 ch\u1ec9 kho\u1ea3ng c\u00e1ch hai m\u1eb7t gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m. K\u00edch th\u01b0\u1edbc c\u1ee7a khe h\u1edf c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn l\u1ef1c k\u00e9o, ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a chi ti\u1ebft \u0111\u01b0\u1ee3c k\u00e9o v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n. Khi khe h\u1edf nh\u1ecf, ph\u1ea7n k\u00e9o s\u00e2u c\u00f3 l\u00f2 xo h\u1ed3i v\u1ecb nh\u1ecf, th\u00e0nh b\u00ean th\u1eb3ng v\u00e0 m\u1ecbn th\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t h\u01a1n, \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n. <\/p>\n\n\n\n

N\u1ebfu gi\u00e1 tr\u1ecb khe h\u1edf qu\u00e1 nh\u1ecf, l\u1ef1c k\u00e9o s\u1ebd t\u0103ng l\u00ean, d\u1eabn \u0111\u1ebfn ph\u00f4i m\u1ecfng nghi\u00eam tr\u1ecdng, ho\u1eb7c th\u1eadm ch\u00ed n\u1ee9t, ma s\u00e1t v\u00e0 m\u00e0i m\u00f2n nghi\u00eam tr\u1ecdng gi\u1eefa c\u00e1c b\u1ec1 m\u1eb7t khu\u00f4n, v\u00e0 gi\u1ea3m tu\u1ed5i th\u1ecd khu\u00f4n. Khi khe h\u1edf qu\u00e1 l\u1edbn, l\u1ef1c k\u00e9o b\u1ecb gi\u1ea3m v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n, nh\u01b0ng ph\u00f4i d\u1ec5 b\u1ecb nh\u0103n, \u0111\u1ed9 c\u00f4n c\u1ee7a chi ti\u1ebft v\u1ebd l\u1edbn, \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00e9m. <\/p>\n\n\n\n

Do \u0111\u00f3, gi\u00e1 tr\u1ecb khe h\u1edf c\u1ee7a khu\u00f4n v\u1ebd ph\u1ea3i h\u1ee3p l\u00fd, v\u00e0 \u0111i\u1ec1u ki\u1ec7n gi\u1eef ph\u00f4i, s\u1ed1 l\u1ea7n v\u1ebd v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00f4i c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t khi x\u00e1c \u0111\u1ecbnh. Nguy\u00ean t\u1eafc l\u00e0 kh\u00f4ng ch\u1ec9 xem x\u00e9t kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a b\u1ea3n th\u00e2n v\u1eadt li\u1ec7u t\u1ea5m m\u00e0 c\u00f2n xem x\u00e9t hi\u1ec7n t\u01b0\u1ee3ng d\u00e0y l\u00ean c\u1ee7a v\u1eadt li\u1ec7u t\u1ea5m. Gi\u00e1 tr\u1ecb c\u1ee7a khe h\u1edf th\u01b0\u1eddng l\u1edbn h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi \u0111\u1ed9 d\u00e0y c\u1ee7a m\u1eabu tr\u1ed1ng.<\/p>\n\n\n\n

V\u1ebd s\u00e2u m\u00e0 kh\u00f4ng c\u1ea7n nh\u1ea5n thi\u1ebft b\u1ecb<\/strong><\/strong><\/h5>\n\n\n\n

\u0110\u1ed1i v\u1edbi khu\u00f4n v\u1ebd m\u00e0 kh\u00f4ng c\u1ea7n \u00e9p thi\u1ebft b\u1ecb, khe h\u1edf gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n

Z \/ 2 = (1 ~ 1,1) tt\u1ed1i \u0111a<\/sub><\/p>\n\n\n\n

Trong c\u00f4ng th\u1ee9c, Z \/ 2 \u2014 V\u1ebd m\u1eb7t c\u1eaft l\u1ed3i l\u00f5m v\u00e0 khe h\u1edf \u0111\u01a1n ph\u01b0\u01a1ng;<\/p>\n\n\n\n

tt\u1ed1i \u0111a<\/sub>\u2014- K\u00edch th\u01b0\u1edbc gi\u1edbi h\u1ea1n t\u1ed1i \u0111a c\u1ee7a \u0111\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m;<\/p>\n\n\n\n

1 ~ 1.1 \u2014- \u0110\u1ed1i v\u1edbi b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean v\u00e0 gi\u1eefa ho\u1eb7c c\u00e1c ph\u1ea7n v\u1ebd s\u00e2u kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc cao, l\u1ea5y gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n; \u0111\u1ed1i v\u1edbi b\u1ea3n v\u1ebd cu\u1ed1i c\u00f9ng ho\u1eb7c c\u00e1c ph\u1ea7n b\u1ea3n v\u1ebd y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc cao, l\u1ea5y c\u00f4ng th\u1ee9c Gi\u00e1 tr\u1ecb nh\u1ecf h\u01a1n.<\/p>\n\n\n\n

V\u1ebd s\u00e2u v\u1edbi thi\u1ebft b\u1ecb nh\u1ea5n<\/strong><\/strong><\/h5>\n\n\n\n

\u0110\u1ed1i v\u1edbi khu\u00f4n k\u00e9o c\u00f3 thi\u1ebft b\u1ecb \u00e9p, khe h\u1edf gi\u1eefa khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong B\u1ea3ng 1-2.<\/p>\n\n\n\n

\n
T\u1ed5ng s\u1ed1 l\u1ea7n v\u1ebd<\/td>Qu\u00e1 tr\u00ecnh v\u1ebd<\/td>Gi\u1ea3i ph\u00f3ng m\u1eb7t b\u1eb1ng \u0111\u01a1n ph\u01b0\u01a1ng Z \/ 2<\/td>T\u1ed5ng s\u1ed1 l\u1ea7n v\u1ebd<\/td>Qu\u00e1 tr\u00ecnh v\u1ebd<\/td>Gi\u1ea3i ph\u00f3ng m\u1eb7t b\u1eb1ng \u0111\u01a1n ph\u01b0\u01a1ng Z \/ 2<\/td><\/tr>
 1<\/td>1 b\u1ea3n v\u1ebd s\u00e2u<\/td>(1 ~ 1,1) t<\/td>4<\/td>B\u1ea3n v\u1ebd th\u1ee9 nh\u1ea5t v\u00e0 th\u1ee9 hai<\/td>1,2t<\/td><\/tr>
 <\/td>B\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean<\/td>1,1t<\/td> <\/td>B\u1ea3n v\u1ebd s\u00e2u th\u1ee9 3<\/td>1,1t<\/td><\/tr>
 <\/td>B\u1ea3n v\u1ebd th\u1ee9 2<\/td>(1 ~ 1,05) t<\/td> <\/td>B\u1ea3n v\u1ebd s\u00e2u th\u1ee9 4<\/td>(1 ~ 1,05) t<\/td><\/tr>
2<\/td>B\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean<\/td>1,2t<\/td>5<\/td>B\u1ea3n v\u1ebd th\u1ee9 1, th\u1ee9 2, th\u1ee9 3<\/td>1,2t<\/td><\/tr>
3<\/td>B\u1ea3n v\u1ebd th\u1ee9 2<\/td>1,1t<\/td> <\/td>B\u1ea3n v\u1ebd s\u00e2u th\u1ee9 4<\/td>1,1t<\/td><\/tr>
 <\/td>B\u1ea3n v\u1ebd s\u00e2u th\u1ee9 3<\/td>(1 ~ 1,05) t<\/td> <\/td>B\u1ea3n v\u1ebd s\u00e2u th\u1ee9 5<\/td>(1 ~ 1,05) t<\/td><\/tr><\/tbody><\/table>
B\u1ea3ng 1-2 Gi\u00e1 tr\u1ecb khe h\u1edf \u0111\u01a1n ph\u01b0\u01a1ng trong qu\u00e1 tr\u00ecnh k\u00e9o s\u00e2u b\u1eb1ng thi\u1ebft b\u1ecb \u00e9p (\u0111\u01a1n v\u1ecb: mm)<\/figcaption><\/figure>\n\n\n\n

Ghi ch\u00fa:<\/p>\n\n\n\n

1. t l\u00e0 chi\u1ec1u d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u, l\u1ea5y gi\u00e1 tr\u1ecb gi\u1eefa c\u1ee7a \u0111\u1ed9 l\u1ec7ch cho ph\u00e9p c\u1ee7a v\u1eadt li\u1ec7u, mm;<\/p>\n\n\n\n

2. Khi v\u1ebd ph\u00f4i ch\u00ednh x\u00e1c, l\u1ea5y Z \/ 2 = t cho khe h\u1edf v\u1ebd cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c chi ti\u1ebft y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao, \u0111\u1ec3 c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i nh\u1ecf sau khi v\u1ebd v\u00e0 b\u1ec1 m\u1eb7t nh\u1eb5n, ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng khu\u00f4n d\u1eadp b\u1ea3n v\u1ebd khe h\u1edf \u00e2m. Gi\u00e1 tr\u1ecb gi\u1ea3i ph\u00f3ng m\u1eb7t b\u1eb1ng \u0111\u01a1n ph\u01b0\u01a1ng c\u1ee7a n\u00f3 l\u00e0<\/p>\n\n\n\n

Z \/ 2 = (0,9-0,095) t<\/p>\n\n\n\n

Khi s\u1eed d\u1ee5ng m\u1ed9t khe h\u1edf nh\u1ecf h\u01a1n, l\u1ef1c k\u00e9o \u0111\u01b0\u1ee3c t\u0103ng 20% so v\u1edbi t\u00ecnh tr\u1ea1ng b\u00ecnh th\u01b0\u1eddng, v\u00e0 h\u1ec7 s\u1ed1 v\u1ebd \u0111\u01b0\u1ee3c t\u0103ng l\u00ean t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m<\/strong><\/strong><\/h4>\n\n\n\n

\u0110\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi k\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m trong l\u1ea7n v\u1ebd s\u00e2u cu\u1ed1i c\u00f9ng, v\u00e0 k\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a khu\u00f4n l\u00f5m v\u00e0 khu\u00f4n l\u1ed3i trong l\u1ea7n v\u1ebd s\u00e2u cu\u1ed1i c\u00f9ng ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo y\u00eau c\u1ea7u c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn. N\u00f3i chung, ngo\u00e0i dung sai k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd cu\u1ed1i c\u00f9ng, dung sai k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n v\u00e0 dung sai k\u00edch th\u01b0\u1edbc c\u1ee7a b\u00e1n th\u00e0nh ph\u1ea9m c\u1ee7a l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0 l\u1ea7n gi\u1eefa kh\u00f4ng c\u1ea7n ph\u1ea3i gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, k\u00edch th\u01b0\u1edbc c\u1ee7a khu\u00f4n ph\u1ea3i b\u1eb1ng k\u00edch th\u01b0\u1edbc chuy\u1ec3n ti\u1ebfp c\u1ee7a tr\u1ed1ng.<\/p>\n\n\n\n

B\u00e1n k\u00ednh phi l\u00ea ch\u1ebft<\/strong><\/strong><\/h5>\n\n\n\n

B\u00e1n k\u00ednh phi l\u00ea c\u1ee7a khu\u00f4n b\u1ebf c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn c\u00f4ng vi\u1ec7c v\u1ebd, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng chi ti\u1ebft \u0111\u01b0\u1ee3c v\u1ebd, k\u00edch th\u01b0\u1edbc c\u1ee7a l\u1ef1c k\u00e9o, tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n v\u1ebd. V\u00ec v\u1eady, vi\u1ec7c ch\u1ecdn b\u00e1n k\u00ednh phi l\u00ea c\u1ee7a khu\u00f4n b\u1ebf h\u1ee3p l\u00fd l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n

B\u00e1n k\u00ednh phi l\u00ea c\u1ee7a khu\u00f4n v\u1ebd s\u00e2u \u0111\u1ea7u ti\u00ean c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn v\u1edbi tham chi\u1ebfu \u0111\u1ebfn c\u00e1c gi\u00e1 tr\u1ecb trong B\u1ea3ng 1-3.<\/p>\n\n\n\n

B\u00e1n k\u00ednh phi l\u00ea c\u1ee7a khu\u00f4n cho m\u1ed7i b\u1ea3n v\u1ebd ti\u1ebfp theo ph\u1ea3i nh\u1ecf h\u01a1n b\u00e1n k\u00ednh c\u1ee7a b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n

rd<\/sub>N<\/sub>= (0,6 ~ 0. 8) rdn-<\/sub>1<\/sub><\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p v\u1ebd <\/td>\u0110\u1ed9 d\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a m\u1eabu tr\u1eafng \uff08t \/ D\uff09 X100<\/td>\u0110\u1ed9 d\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a m\u1eabu tr\u1eafng \uff08t \/ D\uff09 X100<\/td>\u0110\u1ed9 d\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a m\u1eabu tr\u1eafng \uff08t \/ D\uff09 X100<\/td><\/tr>
 <\/td>\u22642.0 ~ 1.0<\/td>\uff1c 1,0 ~ 0,3<\/td>\uff1c 0,3 ~ 0,1<\/td><\/tr>
Trong ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng m\u1eb7t b\u00edch<\/td>(4 ~ 6) t<\/td>(6 ~ 8) t<\/td>(8 ~ 12) t<\/td><\/tr>
Trong ph\u01b0\u01a1ng ph\u00e1p m\u1eb7t b\u00edch<\/td>(6 ~ 12) t<\/td>(10 ~ 15) t<\/td>(15 ~ 20) t<\/td><\/tr><\/tbody><\/table>
B\u1ea3ng 1-3 B\u00e1n k\u00ednh phi l\u00ea rd1<\/sub> c\u1ee7a b\u1ee9c v\u1ebd s\u00e2u \u0111\u1ea7u ti\u00ean ch\u1ebft<\/figcaption><\/figure>\n\n\n\n
\u0110\u1ee5c b\u00e1n k\u00ednh phi l\u00ea<\/strong><\/strong><\/h5>\n\n\n\n

K\u00edch th\u01b0\u1edbc c\u1ee7a b\u00e1n k\u00ednh phi l\u00ea \u0111\u1ed9t \u00edt \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3n v\u1ebd h\u01a1n b\u00e1n k\u00ednh phi l\u00ea khu\u00f4n, nh\u01b0ng gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 c\u0169ng ph\u1ea3i ph\u00f9 h\u1ee3p. N\u1ebfu rP<\/sub> qu\u00e1 nh\u1ecf, "ph\u1ea7n nguy hi\u1ec3m" s\u1ebd ch\u1ecbu l\u1ef1c k\u00e9o cao v\u00e0 ph\u00f4i s\u1ebd c\u00f3 xu h\u01b0\u1edbng b\u1ecb m\u1ecfng c\u1ee5c b\u1ed9. N\u1ebfu rP<\/sub> qu\u00e1 l\u1edbn, b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac gi\u1eefa \u0111\u1ed9t v\u00e0 tr\u1ed1ng s\u1ebd nh\u1ecf, v\u00e0 \u0111\u00e1y s\u1ebd m\u1ecfng h\u01a1n v\u00e0 d\u1ec5 x\u1ea3y ra n\u1ebfp nh\u0103n b\u00ean trong.<\/p>\n\n\n\n

B\u00e1n k\u00ednh phi l\u00ea c\u1ee7a \u0111\u1ed9t l\u1ed7 cho b\u1ea3n v\u1ebd s\u00e2u \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c sau.<\/p>\n\n\n\n

 rp1<\/sub>= (0,7 ~ 1,0) rd1<\/sub><\/p>\n\n\n\n

Ngo\u1ea1i tr\u1eeb l\u1ea7n cu\u1ed1i c\u00f9ng, b\u00e1n k\u00ednh g\u00f3c tr\u00f2n c\u1ee7a m\u1ed7i b\u1ea3n v\u1ebd \u0111\u1ee5c l\u1ed7 \u1edf gi\u1eefa l\u00e0<\/p>\n\n\n\n

 rpn-1<\/sub>= (dn-1<\/sub>-dN<\/sub>-2t) \/ 2<\/p>\n\n\n\n

Trong c\u00f4ng th\u1ee9c, dn-1<\/sub>, dN<\/sub> \u2014- \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a m\u1ed7i qu\u00e1 tr\u00ecnh, mm.<\/p>\n\n\n\n

Trong b\u1ea3n v\u1ebd s\u00e2u cu\u1ed1i c\u00f9ng, b\u00e1n k\u00ednh phi l\u00ea \u0111\u1ed9t l\u1ed7 ph\u1ea3i b\u1eb1ng b\u00e1n k\u00ednh phi l\u00ea c\u1ee7a ph\u00f4i. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 d\u00e0y nh\u1ecf h\u01a1n 6mm, gi\u00e1 tr\u1ecb kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ecf h\u01a1n (2 ~ 3) t; \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 d\u00e0y h\u01a1n 6mm, gi\u00e1 tr\u1ecb kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ecf h\u01a1n (1,5 ~ 2) t.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc v\u00e0 dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m<\/strong><\/strong><\/h5>\n\n\n\n

C\u00e1c y\u00eau c\u1ea7u v\u1ec1 h\u00ecnh d\u1ea1ng v\u00e0 h\u00ecnh d\u1ea1ng b\u00ean trong c\u1ee7a b\u1ed9 ph\u1eadn li\u00ean quan \u0111\u1ebfn c\u01a1 s\u1edf thi\u1ebft k\u1ebf c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd, do \u0111\u00f3, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch ch\u1eb7t ch\u1ebd, nh\u01b0 trong H\u00ecnh 1-4.<\/p>\n<\/div><\/div>\n\n\n\n

\"H\u00ecnh
H\u00ecnh 1-4 K\u00edch th\u01b0\u1edbc b\u1ed9 ph\u1eadn v\u1ebd v\u00e0 k\u00edch th\u01b0\u1edbc khu\u00f4n<\/figcaption><\/figure><\/div>\n\n\n\n
  • Khi c\u00e1c k\u00edch th\u01b0\u1edbc b\u00ean ngo\u00e0i v\u00e0 dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-4 (a), d\u1ef1a tr\u00ean khu\u00f4n, theo quy lu\u1eadt m\u00e0i m\u00f2n, c\u00e1c k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a khu\u00f4n l\u00e0:<\/li><\/ul>\n\n\n\n

    D l\u00f5m xu\u1ed1ng<\/sub> = (D-0,75\u0394) 0+ \u03b4<\/sup> l\u00f5m xu\u1ed1ng<\/sup><\/p>\n\n\n\n

    C\u00e1c k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a c\u00fa \u0111\u1ea5m l\u00e0:<\/p>\n\n\n\n

    D l\u1ed3i l\u00f5m<\/sub> = (D-0,75\u0394-Z) 0-\u03b4<\/sub> l\u1ed3i l\u00f5m<\/sub><\/p>\n\n\n\n

    D l\u1ed3i l\u00f5m<\/sub> = (d + 0,4\u0394) 0-\u03b4 l\u1ed3i<\/sub><\/p>\n\n\n\n

    • Khi k\u00edch th\u01b0\u1edbc b\u00ean trong v\u00e0 dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-4 (b), d\u1ef1a tr\u00ean \u0111\u1ed9t d\u1eadp, theo quy lu\u1eadt m\u00e0i m\u00f2n, c\u00e1c k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a khu\u00f4n l\u00e0<\/li><\/ul>\n\n\n\n

      D l\u00f5m xu\u1ed1ng<\/sub>= (d + 0,4\u0394 + Z) 0+ \u03b4<\/sup> l\u00f5m xu\u1ed1ng<\/sub><\/sub><\/p>\n\n\n\n

      Trong \u0111\u00f3 D \u2014 K\u00edch th\u01b0\u1edbc gi\u1edbi h\u1ea1n l\u1edbn nh\u1ea5t c\u1ee7a \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a chi ti\u1ebft, mm;<\/p>\n\n\n\n

      d \u2014- K\u00edch th\u01b0\u1edbc gi\u1edbi h\u1ea1n nh\u1ecf nh\u1ea5t c\u1ee7a \u0111\u01b0\u1eddng k\u00ednh trong c\u1ee7a chi ti\u1ebft, mm;<\/p>\n\n\n\n

      \u0394 \u2014- Dung sai c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn;<\/p>\n\n\n\n

      Z \u2014 Kho\u1ea3ng c\u00e1ch hai m\u1eb7t c\u1ee7a khu\u00f4n v\u1ebd, mm;<\/p>\n\n\n\n

      \u03b4 l\u1ed3i l\u00f5m<\/sub>, \u03b4 l\u00f5m xu\u1ed1ng<\/sub>\u2014- dung sai ch\u1ebf t\u1ea1o c\u1ee7a khu\u00f4n l\u1ed3i v\u00e0 khu\u00f4n l\u00f5m \u0111\u01b0\u1ee3c ch\u1ecdn theo dung sai c\u1ee7a ph\u00f4i. Khi dung sai ph\u00f4i tr\u00ean IT13, \u03b4 l\u1ed3i l\u00f5m<\/sub> v\u00e0 \u03b4 l\u00f5m xu\u1ed1ng <\/sub>c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ea5y theo IT6 ~ 8; khi dung sai ph\u00f4i d\u01b0\u1edbi IT14, \u03b4 l\u1ed3i l\u00f5m<\/sub> v\u00e0 \u03b4 l\u00f5m xu\u1ed1ng<\/sub> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ea5y theo IT10.<\/p>\n\n\n\n

      C\u1ea5u tr\u00fac \u0111i\u1ec3n h\u00ecnh c\u1ee7a khu\u00f4n v\u1ebd<\/strong><\/strong><\/h3>\n\n\n\n

      C\u1ea5u t\u1ea1o c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ed9i dung c\u01a1 b\u1ea3n nh\u1ea5t trong thi\u1ebft k\u1ebf khu\u00f4n b\u1ea3n v\u1ebd. Khu\u00f4n b\u1ea3n v\u1ebd c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh khu\u00f4n b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean v\u00e0 khu\u00f4n b\u1ea3n v\u1ebd ti\u1ebfp theo theo tr\u00ecnh t\u1ef1 quy tr\u00ecnh; Theo thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c khu\u00f4n v\u1ebd cho m\u00e1y \u00e9p m\u1ed9t t\u00e1c \u0111\u1ed9ng, khu\u00f4n v\u1ebd cho m\u00e1y \u00e9p hai t\u00e1c \u0111\u1ed9ng v\u00e0 m\u00e1y \u00e9p ba t\u00e1c \u0111\u1ed9ng Khu\u00f4n v\u1ebd cho m\u00e1y \u00e9p; Theo s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c qu\u00e1 tr\u00ecnh, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh khu\u00f4n b\u1ea3n v\u1ebd m\u1ed9t qu\u00e1 tr\u00ecnh, khu\u00f4n d\u1eadp h\u1ed7n h\u1ee3p v\u00e0 khu\u00f4n b\u1ea3n v\u1ebd li\u00ean t\u1ee5c;<\/p>\n\n\n\n

      Ngo\u00e0i ra, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c khu\u00f4n b\u1ea3n v\u1ebd c\u00f3 v\u00e0 kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb g\u1ea5p m\u00e9p t\u00f9y theo s\u1ef1 c\u00f3 m\u1eb7t ho\u1eb7c kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb g\u1ea5p m\u00e9p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u1ea5u tr\u00fac khu\u00f4n b\u1ea3n v\u1ebd \u0111i\u1ec3n h\u00ecnh.<\/p>\n\n\n\n

      B\u1ee9c v\u1ebd \u0111\u1ea7u ti\u00ean ch\u1ebft<\/strong><\/strong><\/h4>\n\n\n\n

      H\u00ecnh 1-5 cho th\u1ea5y khu\u00f4n v\u1ebd \u0111\u1ea7u ti\u00ean kh\u00f4ng c\u00f3 gi\u00e1 \u0111\u1ee1 tr\u1ed1ng. Ph\u00f4i b\u00e1n th\u00e0nh ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb b\u1edfi t\u1ea5m \u0111\u1ecbnh v\u1ecb 5, v\u00e0 \u0111\u1ed9t l\u1ed7 b\u1ea3n v\u1ebd 2 ch\u1ea1y xu\u1ed1ng d\u01b0\u1edbi cho \u0111\u1ebfn khi khu\u00f4n d\u1eadp b\u1ea3n v\u1ebd \u00e9p t\u1ea5m v\u00e0o khu\u00f4n b\u1ea3n v\u1ebd 3 \u0111\u1ec3 t\u1ea1o th\u00e0nh ph\u00f4i, v\u00e0 b\u1ea3n v\u1ebd k\u1ebft th\u00fac. C\u00fa \u0111\u1ea5m b\u1ea3n v\u1ebd 2 ch\u1ea1y l\u00ean tr\u00ean, v\u00e0 b\u1ea3n v\u1ebd s\u00e2u \u0111\u01b0\u1ee3c k\u00e9o ra b\u1edfi v\u00f2ng kh\u00f4ng t\u1ea3i 4 \u1edf ph\u1ea7n d\u01b0\u1edbi c\u1ee7a khu\u00f4n b\u1ea3n v\u1ebd. B\u1edfi v\u00ec khu\u00f4n v\u1ebd 2 ph\u1ea3i \u0111i s\u00e2u v\u00e0o b\u00ean d\u01b0\u1edbi khu\u00f4n n\u1eef v\u1ebd 3 n\u00ean khu\u00f4n d\u1eadp ch\u1ec9 th\u00edch h\u1ee3p \u0111\u1ec3 v\u1ebd n\u00f4ng. \u0110\u1ec3 tr\u00e1nh ph\u00f4i b\u1ecb d\u00ednh v\u00e0o \u0111\u1ed9t l\u1ed7 v\u00e0 kh\u00f3 th\u00e1o ra sau khi v\u1ebd, b\u1ea3n v\u1ebd \u0111\u1ed9t 2 \u0111\u01b0\u1ee3c cung c\u1ea5p c\u00e1c l\u1ed7 tho\u00e1t h\u01a1i.<\/p>\n\n\n\n

      \"H\u00ecnh
      H\u00ecnh 1-5 Khu\u00f4n v\u1ebd \u0111\u1ea7u ti\u00ean kh\u00f4ng c\u00f3 gi\u00e1 \u0111\u1ee1 tr\u1ed1ng<\/figcaption><\/figure><\/div>\n\n\n\n

      Lo\u1ea1i khu\u00f4n n\u00e0y c\u00f3 c\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n v\u00e0 th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 k\u00e9o s\u00e2u khi t\u1ea5m kim lo\u1ea1i c\u00f3 \u0111\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 \u0111\u1ed9 d\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn.<\/p>\n\n\n\n

      H\u00ecnh 1-6 cho th\u1ea5y khu\u00f4n v\u1ebd \u0111\u1ea7u ti\u00ean v\u1edbi thi\u1ebft b\u1ecb gi\u1eef c\u1ea1nh tr\u00ean \u0111\u00f3. Tr\u01b0\u1edbc khi v\u1ebd s\u00e2u, ph\u00f4i b\u00e1n th\u00e0nh ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb b\u1edfi t\u1ea5m \u0111\u1ecbnh v\u1ecb 6. Khi k\u00e9o, \u0111\u1ed9t l\u1ed7 10 di chuy\u1ec3n xu\u1ed1ng d\u01b0\u1edbi, v\u00e0 ph\u00f4i b\u00e1n th\u00e0nh ph\u1ea9m tr\u01b0\u1edbc ti\u00ean \u0111\u01b0\u1ee3c \u00e9p ph\u1eb3ng tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a khu\u00f4n v\u1ebd 7 b\u1eb1ng v\u00f2ng \u00e9p 5 do \u0111\u1ebfn khi l\u00f2 xo 4 b\u1ecb n\u00e9n th\u00ec qu\u1ea3 \u0111\u1ea5m 10 ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed9ng xu\u1ed1ng d\u01b0\u1edbi v\u00e0 l\u00f2 xo 4 ti\u1ebfp t\u1ee5c b\u1ecb n\u00e9n. Cho \u0111\u1ebfn khi ph\u00f4i \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1eb1ng c\u00e1ch kho\u00e9t s\u00e2u. <\/p>\n\n\n\n

      Khi k\u1ebft th\u00fac b\u1ea3n v\u1ebd, c\u00fa \u0111\u1ea5m di chuy\u1ec3n l\u00ean tr\u00ean, v\u00e0 gi\u00e1 \u0111\u1ee1 tr\u1ed1ng quay tr\u1edf l\u1ea1i d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u00f2 xo \u0111\u1ec3 c\u1ea1o b\u1ecf ph\u00f4i \u0111\u01b0\u1ee3c b\u1ecdc tr\u00ean \u0111\u1ed9t d\u1eadp b\u1ea3n v\u1ebd. Lo\u1ea1i khu\u00f4n b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean c\u00f3 thi\u1ebft b\u1ecb t\u1ea1o kho\u1ea3ng tr\u1ed1ng \u0111\u00e0n h\u1ed3i n\u00e0y l\u00e0 k\u1ebft c\u1ea5u khu\u00f4n b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t v\u00e0 l\u1ef1c gi\u1eef tr\u1ed1ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi s\u1ef1 n\u00e9n c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed \u0111\u00e0n h\u1ed3i. Khu\u00f4n \u0111\u1ed9t l\u1ed7 c\u1ee7a lo\u1ea1i k\u1ebft c\u1ea5u khu\u00f4n n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i d\u00e0i, ch\u1ec9 th\u00edch h\u1ee3p cho ph\u00f4i c\u00f3 chi\u1ec1u s\u00e2u b\u1ea3n v\u1ebd nh\u1ecf. \u0110\u1ed3ng th\u1eddi, do v\u1ecb tr\u00ed kh\u00f4ng gian c\u1ee7a khu\u00f4n tr\u00ean h\u1ea1n ch\u1ebf, kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng l\u00f2 xo ho\u1eb7c cao su l\u1edbn n\u00ean thi\u1ebft b\u1ecb \u00e9p tr\u00ean c\u00f3 l\u1ef1c \u00e9p nh\u1ecf, v\u00e0 thi\u1ebft b\u1ecb n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u00e9p c\u1ea1nh. kh\u00f4ng l\u1edbn.<\/p>\n\n\n\n

      \"H\u00ecnh
      H\u00ecnh 1-6 Khu\u00f4n b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean v\u1edbi thi\u1ebft b\u1ecb t\u1ea9y tr\u1eafng ph\u00eda tr\u00ean
      1- tay c\u1ea7m khu\u00f4n; 2- khu\u00f4n ng\u1ed3i tr\u00ean; 3- t\u1ea5m c\u1ed1 \u0111\u1ecbnh \u0111\u1ed9t l\u1ed7; 4- l\u00f2 xo; 5- v\u00f2ng gi\u1eef tr\u1ed1ng; 6-t\u1ea5m \u0111\u1ecbnh v\u1ecb; 7- khu\u00f4n c\u00e1i; 8- khu\u00f4n d\u01b0\u1edbi ng\u1ed3i; 9- v\u00edt t\u1ea3i; 10 c\u00fa \u0111\u1ea5m<\/figcaption><\/figure><\/div>\n\n\n\n

      M\u1ed7i b\u1ea3n v\u1ebd ti\u1ebfp theo s\u1ebd ch\u1ebft<\/strong><\/strong><\/h4>\n\n\n\n

      Do h\u1ec7 s\u1ed1 v\u1ebd c\u1ee7a l\u1ea7n v\u1ebd s\u00e2u \u0111\u1ea7u ti\u00ean c\u00f2n h\u1ea1n ch\u1ebf n\u00ean nhi\u1ec1u b\u1ed9 ph\u1eadn kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 chi\u1ec1u cao sau l\u1ea7n v\u1ebd s\u00e2u \u0111\u1ea7u ti\u00ean. C\u00e1c em c\u0169ng c\u1ea7n tr\u1ea3i qua l\u1ea7n v\u1ebd s\u00e2u th\u1ee9 hai, th\u1ee9 ba, th\u1eadm ch\u00ed nhi\u1ec1u h\u01a1n n\u1eefa, \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 nh\u1eefng l\u1ea7n v\u1ebd ti\u1ebfp theo. s\u00e2u. C\u00e1c kho\u1ea3ng tr\u1ed1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ed7i l\u1ea7n v\u1ebd ti\u1ebfp theo l\u00e0 c\u00e1c b\u1ed9 ph\u1eadn h\u00ecnh tr\u1ee5 b\u00e1n th\u00e0nh ph\u1ea9m ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn h\u00ecnh c\u00f4n \u0111\u00e3 \u0111\u01b0\u1ee3c v\u1ebd l\u1ea7n \u0111\u1ea7u ti\u00ean, thay v\u00ec c\u00e1c kho\u1ea3ng tr\u1ed1ng ph\u1eb3ng. Do \u0111\u00f3, thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb v\u00e0 thi\u1ebft b\u1ecb c\u1eaft ph\u00f4i ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi khu\u00f4n b\u1ea3n v\u1ebd \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n

      C\u00f3 ba ph\u01b0\u01a1ng ph\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb khu\u00f4n b\u1ea3n v\u1ebd trong m\u1ed7i qu\u00e1 tr\u00ecnh sau n\u00e0y: th\u1ee9 nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t t\u1ea5m \u0111\u1ecbnh v\u1ecb c\u1ee5 th\u1ec3; th\u1ee9 hai l\u00e0 gia c\u00f4ng m\u1ed9t khoang tr\u00ean khu\u00f4n \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb b\u00e1n th\u00e0nh ph\u1ea9m, nh\u01b0 trong H\u00ecnh 1-2; Lo\u1ea1i th\u1ee9 ba l\u00e0 d\u00f9ng l\u1ed7 b\u00ean trong c\u1ee7a b\u00e1n th\u00e0nh ph\u1ea9m \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb b\u1eb1ng h\u00ecnh d\u1ea1ng \u0111\u1ed9t l\u1ed7 ho\u1eb7c h\u00ecnh d\u1ea1ng c\u1ee7a gi\u00e1 \u0111\u1ee1 tr\u1ed1ng. Thi\u1ebft b\u1ecb gi\u1eef c\u1ea1nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00fac n\u00e0y kh\u00f4ng c\u00f2n l\u00e0 k\u1ebft c\u1ea5u ph\u1eb3ng n\u1eefa m\u00e0 l\u00e0 k\u1ebft c\u1ea5u h\u00ecnh tr\u1ee5 ho\u1eb7c h\u00ecnh n\u00f3n.<\/p>\n\n\n\n

      Nh\u01b0 trong h\u00ecnh 1-7, tr\u1ed1ng l\u00e0 m\u1ed9t ph\u1ea7n h\u00ecnh tr\u1ee5 b\u00e1n th\u00e0nh ph\u1ea9m c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ea5t \u0111\u1ecbnh sau khi \u0111\u01b0\u1ee3c r\u00fat ra qua qu\u00e1 tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3. Sau khi \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean khu\u00f4n l\u00f5m 13 c\u1ee7a khu\u00f4n, \u0111\u1ed9t l\u1ed7 b\u1ea3n v\u1ebd 11 \u0111i xu\u1ed1ng ti\u1ebfp x\u00fac v\u1edbi tr\u1ed1ng \u0111\u1ec3 v\u1ebd s\u00e2u cho \u0111\u1ebfn khi r\u00fat ra. \u0110\u1ed1i v\u1edbi ph\u00f4i, sau khi v\u1ebd xong, \u0111\u1ed9t l\u1ed7 b\u1ea3n v\u1ebd di chuy\u1ec3n l\u00ean tr\u00ean, v\u00e0 ph\u1ea7n s\u00e2u \u0111\u01b0\u1ee3c k\u00e9o ra theo b\u01b0\u1edbc (c\u1ed5 x\u1ea3) \u1edf ph\u1ea7n d\u01b0\u1edbi c\u1ee7a khu\u00f4n 13.<\/p>\n\n\n\n

      \"H\u00ecnh
      H\u00ecnh 1-7 Gi\u00e1 \u0111\u1ee1 tr\u1ed1ng n\u1eb1m theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a khu\u00f4n tr\u00ean \u0111\u1ec3 v\u1ebd l\u1ea1i khu\u00f4n
      1- khu\u00f4n d\u01b0\u1edbi ng\u1ed3i; 2, 7-pin; 3, 14-v\u00edt; 4- v\u00edt x\u1ea3; 5- khu\u00f4n tr\u00ean; 6-khu\u00f4n tay c\u1ea7m; 8-l\u00f2 xo; 9-t\u1ea5m c\u1ed1 \u0111\u1ecbnh \u0111\u1ed9t l\u1ed7; 10-c\u1ed9t \u0111\u1ee1; 11-khu\u00f4n l\u1ed3i; 12-t\u1ea5m x\u1ea3; 13-khu\u00f4n l\u00f5m<\/figcaption><\/figure><\/div>\n\n\n\n

      L\u00e0m tr\u1eafng v\u00e0 s\u00e2u v\u1ebd h\u1ee3p ch\u1ea5t ch\u1ebft<\/strong><\/strong><\/h4>\n\n\n\n

      Nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-8, n\u00f3 l\u00e0 m\u1ed9t khu\u00f4n h\u1ee3p ch\u1ea5t v\u1ebd s\u00e2u v\u00e0 tr\u1ed1ng. Khu\u00f4n th\u01b0\u1eddng s\u1eed d\u1ee5ng d\u1ea3i l\u00e0m kho\u1ea3ng tr\u1ed1ng, v\u00ec v\u1eady tr\u00ean khu\u00f4n c\u1ea7n c\u00f3 c\u01a1 c\u1ea5u d\u1eabn h\u01b0\u1edbng. B\u1ec1 m\u1eb7t tr\u00ean c\u1ee7a khu\u00f4n d\u1eadp khu\u00f4n 19 ph\u1ea3i th\u1ea5p h\u01a1n b\u1ec1 m\u1eb7t tr\u00ean c\u1ee7a khu\u00f4n d\u1eadp ph\u00f4i 4 \u0111\u1ec3 khi khu\u00f4n l\u00e0m vi\u1ec7c, v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u00e0m tr\u1ed1ng tr\u01b0\u1edbc r\u1ed3i m\u1edbi r\u00fat ra. <\/p>\n\n\n\n

      \u0110\u1ed3ng th\u1eddi, l\u01b0\u1ee3ng m\u00e0i c\u1ee7a l\u01b0\u1ee1i c\u1eaft c\u1ea7n \u0111\u01b0\u1ee3c d\u1ef1 tr\u1eef. Trong qu\u00e1 tr\u00ecnh v\u1ebd, \u0111\u1ec7m kh\u00ed \u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1eef m\u00e9p qua ch\u1ed1t \u0111\u1ea9y 2 v\u00e0 gi\u00e1 \u0111\u1ee1 tr\u1ed1ng 3. Sau khi ho\u00e0n th\u00e0nh b\u1ea3n v\u1ebd, ph\u00f4i \u0111\u01b0\u1ee3c \u0111\u1ea9y ra, \u0111\u1ec3 l\u1ea1i ph\u00f4i trong khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m 17, v\u00e0 cu\u1ed1i c\u00f9ng , b\u1eb1ng thanh \u0111\u1ed9t 15, kh\u1ed1i \u0111\u1ea9y 18 \u0111\u01b0\u1ee3c \u0111\u1ea9y ra ngo\u00e0i, v\u00e0 ch\u1ea5t th\u1ea3i r\u01a1i \u0111\u01b0\u1ee3c th\u1ea3i ra ngo\u00e0i b\u1eb1ng t\u1ea5m x\u1ea3 c\u1ee9ng 20.<\/p>\n\n\n\n

      \"H\u00ecnh
      H\u00ecnh 1-8 Khu\u00f4n d\u1eadp h\u1ee3p ch\u1ea5t t\u1ea1o r\u00e3nh v\u00e0 v\u1ebd s\u00e2u
      1- khu\u00f4n d\u01b0\u1edbi ng\u1ed3i; 2- thanh \u0111\u1ea9y; 3- v\u00f2ng gi\u1eef tr\u1ed1ng; 4- khu\u00f4n d\u1eadp ph\u00f4i; 5, 13, 22-pin; 6\/12\/24-v\u00edt; 7- t\u1ea5m c\u1ed1 \u0111\u1ecbnh khu\u00f4n l\u1ed3i v\u00e0 l\u00f5m; 8-pad T\u1ea5m; 9-Khu\u00f4n ng\u1ed3i tr\u00ean; 10-Tay \u00e1o d\u1eabn h\u01b0\u1edbng; 11-B\u00e0i h\u01b0\u1edbng d\u1eabn; 14-Tay c\u1ea7m ch\u1ebft; 15- Thanh \u0111\u1ed9t; 16- Ch\u1ed1t d\u1eebng; 17-Khu\u00f4n l\u1ed3i, l\u00f5m; 18-Kh\u1ed1i \u0111\u1ea9y m\u1ea3nh; 19-V\u1ebd Khu\u00f4n l\u1ed3i; 20-t\u1ea5m d\u1ee1 t\u1ea3i; 21-t\u1ea5m d\u1eabn h\u01b0\u1edbng; T\u1ea5m c\u1ed1 \u0111\u1ecbnh 23 l\u1ed7<\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"

      Design of working part of drawing die Convex and female mold structure design The structure of the drawing punch and<\/p>","protected":false},"author":4,"featured_media":2754,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[721,722,720],"class_list":["post-2738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-punching-machine","tag-drawing-die-design","tag-drawing-die-structure","tag-punch-drawing-die"],"jetpack_featured_media_url":"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/06\/\u4e3b\u56fe6.21.png","_links":{"self":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/2738","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=2738"}],"version-history":[{"count":0,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/posts\/2738\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media\/2754"}],"wp:attachment":[{"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/media?parent=2738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/categories?post=2738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.harslepress.com\/vi\/wp-json\/wp\/v2\/tags?post=2738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}