Various failures occur due to improper operation or machine problems during لكمة processing. For example, the cross-section cracks, which will directly cause the product to be scrapped. Therefore, the operator should check the machine often and find the cross-sectional cracking phenomenon as soon as possible to reduce or avoid the economic loss caused by the obsolescence of the product. So, what is the cause of the cracking of the interrupted surface of the punching machine? HARSLE will tell you more about it!

The general reasons for the cracking of the punch section are as follows:

1.The round corner radius of the punch is too small.

When the fillet radius of the punch is too small, the potential section will become thin during the stretching process, and then cracks will occur. The solution is that the punch manufacturer should appropriately increase the punch fillet radius to reduce the risk of cracking.

2. The corner radius of the die is too small.

When the radius of the rounded corner of the die is too small, the bending force at the rounded corner will be greater during stretching, the metal will not move easily, and the frictional resistance will be greater; then the stretching force will increase, causing cracking at the dangerous section.

ال لكمة manufacturer must appropriately increase the radius of the die fillet to minimize the possibility of cracking.

3. The surface of the crimping ring is not polished

These defects of the blank holder will increase the deformation resistance and unevenness, thereby causing cracking.

The operator should polish the surface of the blank holder and then continue processing activities, so as to avoid another possibility of cracking.

4. Poor lubrication conditions

During لكمة drawing, lubrication can improve metal movement and plays an important role in falling frictional resistance. When the lubrication conditions are poor, cracks are prone to occur.

Our approach is to choose high-quality punch lubricants. When adding lubricating oil, it should be evenly added and added strictly according to the time interval specified by the process.

5. The open space of convex and concave molds is uneven.

The operator should adjust the mold to make the open space uniform, check in time and eliminate potential risks of the section in time.

The above are several reasons that may cause the punch section to crack. Punching machine manufacturers should pay more attention to inspection and maintenance during production, which can eliminate the possibility of cross-sections and maintain the machine well, so as to better produce and process. You can also click https://www.harsle.com/Punching-Machine.html للحصول على مزيد من المعلومات حول آلة التثقيب!