Stamping is a kind of forming method by which the press and die exert external force on the sheet, strip, pipe and profile to produce plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping).

Stamping parts are widely used in various fields, such as aviation, military, machinery, agricultural machinery, electronics, information, railway, post and telecommunications, transportation, chemical industry, medical equipment, household electrical appliances and light industry. It is not only used by the whole industry, but also directly linked to stamping products. There are many large, medium and small stampings on aircraft, trains, cars and tractors. The car body, frame and rim are all processed by stamping. According to relevant statistics, 80% of bicycles, sewing machines and clocks are stamping parts; 90% of TV sets, tape recorders and cameras are stamping parts; there are also food metal cans and shells, steel boilers, enamel bowls and stainless steel tableware, all of which are stamping products using molds; even computer hardware can not be lacking of stamping. Press parts.

The die used in stamping process is usually special. Sometimes a complex part needs several sets of die to be processed and formed. The die has high precision and high technical requirements. It is a technology-intensive product. Therefore, only in the case of large batch production of stamping parts, the advantages of stamping can be fully embodied in order to obtain better economic benefits.