In cold stamping, the processing of materials into parts (or semi-finished) a special process equipment. Workpiece under the punch and die stamping plastic deformation resistance to joint action to complete the process, punch die stamping process is an essential part of precision punch die largely determines the accuracy of the workpiece. Material selection: 42CrMo, 55SiCr, T8, T10,9CrSi, 6CrW2Si, Cr12MoV, H13K, W18Cr4V.
