As one of the usual metal stamping defects, the causes of chipping are various, some of which are due to poor mold design, some are due to poor materials, and some are stamping operators. The first reason is that the punch or other part of the metal stamping die is abnormally scratched or damaged, resulting in micro-waste, which is mainly due to the excessive action of the material when the punch has no homologous structure.

The first reason is that the metal material stamping of the punch or other parts is abnormally scratched or damaged, resulting in fine trim. The key is that the punch must have too much material for the homogenous structure.