Stamping parts are powered by conventional or special stamping equipment, so that the sheet material is directly deformed and deformed in the mold, thereby obtaining the production technology of product parts with a certain shape, size and performance. Sheet metal, mold 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 the material forming engineering technology.
50 to 60% of the global steel products are made of sheet metal, and most of them are finished products after pressing. Car body, radiator sheet, steam drum of steam boiler, shell of container, iron core silicon steel sheet of motor, electrical appliance, etc. are usually stamped. There are also a large number of stamping parts in products such as instruments, household appliances, office dullness, and storage utensils. Stamping is an efficient Linyi action. It adopts a compound die. The abnormality is a multi-station progressive die. It can complete multiple stamping techniques on a single press and complete the automatic generation of materials. The production speed is fast, the rest time is long, the cost of Linyi is low, and the collective can produce hundreds of pieces per minute, which is loved by many processing plants.
The stamping parts are strong against castings and forgings, and have the characteristics of thin, uniform, light and strong. Stamping can produce a workpiece with reinforcement, ribs, bending or flanging that is difficult to manufacture with this familiar diameter to increase its rigidity. Due to the rejection of the rough mold, the precision of the workpiece can reach the micron level, and the precision is high, the specifications are consistent, and the hole, the boss, etc. can be punched out. In actual production, common technical tests similar to the stamping process, such as drawing performance test and bulging performance test, are used to check the stamping performance of the material to ensure the quality of the finished product and a high pass rate.
Except for forming thick plates with hydraulic presses, stamping equipment usually adopts stagnation presses. Focusing on the modern high-speed multi-station stagnation press, setting equipment configuration such as uncoiling, finished product collection, delivery and other stagnation, as well as mold library and quick die change placement, and using computer French tube bundles, can form a high-pressure passive stamping Linyi line. Under the situation of dozens or hundreds of stampings per minute, the process of stamping and delivery is completed within a short time, and personal, equipment and quality changes often occur. Therefore, safety in stamping is a very important issue
