Steel world, there is a sheet 60 to 70%, most of which are stamped into finished products. The car body, chassis, fuel tank, radiator sheet, boiler drum, container shell, motor, and iron core silicon steel sheet of electrical appliances are all stamped. There are also a large number of stamped parts in instruments, household appliances, bicycles, office machinery, household utensils and other products.

Compared with castings and forgings, stamping parts are thin, uniform, light and strong. Stamping can make workpieces with stiffeners, ribs, undulations or flanging that are difficult to manufacture by other methods to improve its rigidity. Due to the use of precision molds, the precision of the workpiece can reach micron level, and the repeatability is high, the specifications are consistent, and holes and bosses can be punched out.

Cold stamped parts are generally no longer cut or require only a small amount of cutting. The precision and surface condition of hot stamping parts are lower than cold stamping parts, but they are still better than castings and forgings, and the amount of cutting is small.

Punching is an efficient production method. Using a compound die, especially a multi-stage progressive die, multiple stamping processes can be completed on one press to achieve the full range from strip unwinding, leveling, punching to forming and finishing. Automatic production. High production efficiency, good labor conditions and low production costs, generally hundreds of pieces can be produced per minute.