Stamping is a method of forming a work piece (stamping part) of a desired shape and size by applying an external force to a plate, a strip, a pipe, a profile, and the like by a press and a die to cause plastic deformation or separation. Stamping and forging are the same plastic processing (or pressure processing), collectively called forging technology. The stamped blanks are mainly hot rolled and cold rolled steel sheets and strips. Of the world's steel, 60-70% are sheets, most of which are stamped into finished products. The body, chassis, fuel tank, radiator plate of the automobile, the steam drum of the boiler, the casing of the container, the iron core silicon steel sheet of the motor and the electric appliance are all stamped and processed. There are also a large number of stamping parts in instruments, household appliances, bicycles, office machinery, living utensils and other products.
Stamping processing is the production technology of product parts that are deformed and deformed directly in the mold by means of the power of conventional or special stamping equipment to obtain a certain shape, size and performance. Sheets, molds and equipment are the three elements of stamping. According to the stamping processing temperature, it is divided into hot stamping and cold stamping. The former is suitable for sheet processing with high deformation resistance and poor plasticity; the latter is carried out at room temperature, which is a common stamping method for thin sheets. It is one of the main methods of metal plastic processing (or pressure processing) and is also part of material forming engineering technology.
The mold used for stamping is called press tool. Press tools are special tools for batch processing materials (metal or non-metal) into the required punches. Press tools are essential in stamping. There are no dies that meet the requirements. Batch stamping production is difficult to carry out; without advanced dies, advanced stamping processes cannot be achieved. The stamping process and the mold, stamping equipment and stamping materials constitute the three elements of stamping processing, and only when they are combined with each other can the stamping parts be obtained.