Stamping processing includes processes such as punching, bending, deep drawing, forming, and finishing. The so-called sheet metal forming refers to the forming method of plastic processing using sheet metal, thin-walled tubes, thin materials, etc. as raw
The hardness testing of stamping materials is mainly aimed at determining whether the annealing degree of the purchased metal sheet is suitable for the subsequent stamping processing. Different types of stamping processing techniques require sheets of dif