What are the problems that can effectively solve the discrepancy of pin socket size in the process of metal stamping? In the production process of metal stamping parts, we will encounter the situation that the size of pin socket is too large or too small, and the size of pin socket is quite different from that of punch. In order to solve this kind of problem, we should consider not only the planning size, processing accuracy and blanking clearance of forming punch and die, but also the following aspects:
First, when punching hardware stamping parts:
It is necessary to study the cutting edge and check whether the blanking clearance is reasonable. It is mainly aimed at U-bend and V-bend. The key to solve the problem is to guide the stamping parts before bending, during bending, and to press the material to prevent the stamping parts from sliding during bending.
Second, metal stamping materials:
With the increase of tensile stress, the tendency of turning over and twisting of stamping parts increases. When turning over occurs, the pin socket size tends to be smaller. The strong pressure on the material will cause plastic deformation of the material, which will lead to the larger size of the pin socket. When the pressure is reduced, the size of the pin socket will be smaller.
Third, the production of metal stamping parts:
If a bevel or arc is made at the end, because the blanking force is relieved, the punching parts are easy to turn over and smear, so the size of the pin socket will be larger. While the punch end is flat, the pin socket size will be relatively smaller.