Dongguan Fortuna Metals CO., Ltd
No. 226, Shida Road, Dalingshan Town, Dongguan 523810, Guangdong, China
The product size problem is a common problem in the stamping process. The punching hole size problem is often encountered in the production of metal stamping parts, which may be too large or too small. So what aspects can help us better solve the problem of punching size of metal stamping parts? Let's take a look together.
1. The tensile stress on the material increases, and the tendency of stamping parts to turn over and twist increases. When the material is turned over, the size of the punching hole will become smaller; the strong pressure on the material will deform the material, which will cause the size of the punching hole to become larger, and when the strong pressure is reduced, the size of the punching hole will become smaller.
2. If the end is trimmed with a slope or an arc, because the punching force is relieved, the punched parts are prone to turning over and smearing, so the punching size will become larger. However, when the end of the punch is flat (no slope or arc), the size of the punching hole will be relatively smaller.
3. It is caused by the burrs of stamping parts produced during punching. It is necessary to study and repair the punching edge, and pay attention to check whether the punching gap is reasonable. It is caused by the instability of stamping parts during bending, mainly for U-shaped and V-shaped bending, guiding the stamping parts before bending, guiding during the bending process, and pressing the material during the bending process to prevent the stamping parts Slippage during bending is the key to solving the problem.
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