60-70% of the world's steel is plate, most of which are made into finished products by stamping. Automobile body, chassis, oil tank, radiator plate, boiler drum, container shell, motor, electrical core silicon steel plate are all stamping processing. There are also a large number of stamping parts in instruments, household appliances, bicycles, office machinery, household utensils and other products.
Stamping part is a kind of forming and processing method to produce plastic deformation or separation of sheet, strip, pipe and profile by using press and die, so as to obtain the required shape and size of workpiece. Stamping and forging belong to plastic processing (or pressure processing), collectively known as forging. The billets for stamping are mainly hot-rolled and cold-rolled steel plates and strips.
Compared with castings and forgings, stamping parts are thin, uniform, light and strong. Stamping can produce workpieces with stiffeners, ribs, undulations or flanging which are difficult to manufacture by other methods, so as to improve their rigidity. Due to the use of precision die, the precision of workpiece can reach micron level, and the repetition precision is high, the specification is consistent, and the hole and socket, boss, etc. can be punched.
Stamping is an efficient production method. By using compound die, especially multi position progressive die, multiple stamping processes can be completed on a press, realizing the full-automatic production from uncoiling, leveling, blanking to forming and finishing.
