The difference between precision stamping and machining

Stamping processing is the production technology of using the power of conventional or special stamping equipment to directly subject the sheet metal to the deformation force and deform in the mold, so as to obtain product parts with a certain shape, size and performance. Sheet materials, molds and equipment are the three elements of stamping processing. Stamping is a method of metal cold deformation processing. Therefore, it is called cold stamping or sheet stamping, or stamping for short. It is one of the main methods of metal plastic processing (or pressure processing), and it also belongs to material forming engineering technology.　　The die used in stamping is called stamping die, or die for short. The die is a special tool for batch processing of materials (metal or non-metal) into the required punches. Punching dies are very important in stamping. Without a die that meets the requirements, mass stamping production will be difficult to carry out; without advanced dies, advanced stamping processes cannot be realized. The stamping process and die, stamping equipment and stamping materials constitute the three elements of stamping processing. Only when they are combined can stamping parts be obtained.　　Compared with other methods of mechanical processing and plastic processing, stamping processing has many unique advantages in both technical and economic aspects. The main performance is as follows.　　(1) The stamping process has high production efficiency, convenient operation, and easy realization of mechanization and automation. This is because stamping relies on punching dies and stamping equipment to complete the processing. The number of strokes of ordinary presses can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute. May get a punch. (2) Since the mold guarantees the size and shape accuracy of the stamping parts during stamping, and generally does not damage the surface quality of the stamping parts, and the life of the mold is generally longer, the stamping quality is stable, interchangeable, and has exactly the same characteristics . (3) Stamping can process parts with a large size range and more complex shapes, such as stopwatches as small as clocks and clocks, as large as automobile longitudinal beams, covering parts, etc., plus the cold deformation and hardening effect of the material during the stamping, and the strength and strength of the stamping The stiffness is high.　　(4) Stamping generally does not generate chips and scraps, consumes less material, and does not require other heating equipment, so it is a material-saving and energy-saving processing method, and the cost of stamping parts is lower.　　 Because of the superiority of stamping, stamping has a wide range of applications in various fields of the national economy. For example, in aerospace, aviation, military industry, machinery, agricultural machinery, electronics, information, railways, post and telecommunications, transportation, chemicals, medical equipment, household appliances and light industry, there are stamping processes. Not only the entire industry uses it, but everyone has direct contact with stamping products.