Steel in the world, there are 60~70% is the plate, most of which are washed and pressed into finished products. Car body, chassis, fuel tank, radiator chip, boiler drum, container shell, motor, electrical iron core silicon steel sheet, etc. are stamping processing.
Instruments, household appliances, bicycles, office machinery, life utensils and other products, there are a large number of stamping parts. Compared with castings and forgings, stamping parts have the characteristics of thin, uniform, light and strong. Stamping can be made by other methods difficult to manufacture with reinforcement, rib, undulation or flanging of the workpiece to improve its rigidity.
Due to the use of precision molds, workpiece precision can reach micron level, and repeat the high precision, the same specifications, you can punch out hole nest, convex Taiwan. Cold stamping parts are generally no longer machined, or require only a small amount of machining. The precision and surface state of hot stamping parts are lower than those of cold stamping parts, but they are still better than castings and forgings, and less machining.