Stamping is a forming processing method that relies on press and dies to apply external force to plate, strip, pipe, and profile to produce plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping part). Stamping and forging are both plastic processing (or pressure processing), collectively known as forging.
The pressed billets are mainly hot and cold rolled steel plates and steel strips.
Of the world's steel, 60 to 70 percent is sheet metal, most of which is stamped into finished products. The automobile body, chassis, fuel tank, radiator, boiler drum, container shell, motor, electrical core silicon steel sheet, etc., are stamping processing. Instruments, household appliances, bicycles, office machinery, utensils, and other products, there are also a large number of stamping parts.