Metal Stamping is a process that uses punches and dies to deform or fracture stainless steel, iron, aluminum, copper and other sheet and heterosexual materials to achieve shape and size. The stamping process can be roughly divided into two categories: separation process and forming process (also divided into bending, deep drawing, and forming). The separation process is to separate the contour lines of the stamped parts and the blank during the stamping process, and at the same time, the quality of the separation section of the stamped parts should also meet the requirements. The forming process is to make the stamped blank plastic deform without damage and convert it into the required finished shape, and at the same time, it should also meet the requirements of dimensional tolerances. The main performance of metal stamping parts is as follows: 1. When stamping, because the die guarantees the size and shape accuracy of the metal stamping parts, and generally does not damage the surface quality of the metal stamping parts, and the life of the die is generally long, so the quality of stamping is stable, the interchangeability is good, and it has the characteristics of "exactly the same". 2. The production efficiency of stamping processing is high, and the operation is convenient, and it is easy to realize mechanization and automation. This is because stamping relies on stamping dies and stamping equipment to complete the processing. The number of strokes of ordinary presses can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute. Moreover, a stamping part may be obtained per stamping stroke. 3. Stamping can process parts with a large size range and complex shapes, such as small stopwatches for clocks, large car stringers, covers, etc., coupled with the cold deformation and hardening effect of the material during stamping, the strength and stiffness of stamping are high. 4. Stamping generally does not have chip material generation, the consumption of materials is small, and no other heating equipment is required, so it is a material-saving and energy-saving processing method, and the cost of stamping parts is low.