The stamping die is called stamping die, or die. Dies are special tools for the batch processing of materials (metal or non-metal) into the required stampings. Stamping is very important in stamping. There is no punch that meets the requirements. Batch stamping production is difficult to carry out. Without advanced stamping, advanced stamping technology cannot be realized. Stamping processes and dies, stamping equipment and stamping materials constitute the three elements of stamping. Only when they are combined can stampings be obtained.
Compared with other methods of mechanical processing and plastic processing, metal stamping processing has many unique advantages in terms of technology and economy. The main performance is as follows.
Stamping parts have high production efficiency, convenient operation and easy realization of mechanization and automation. This is because stamping is accomplished by means of die and punching equipment. The number of strokes of ordinary presses can reach several tens of times per minute, high-speed pressures can reach hundreds or even thousands of times per minute, and each press stroke is You may get a punch.
Stamping because the mold to ensure the stamping parts size and shape accuracy, and generally does not damage the stamping surface quality, and mold life is generally longer, so stamping quality is stable, good interchangeability, with "the same" feature.
Stampings produce parts with a wide range of sizes and shapes, such as stopwatches that are as small as clocks, as large as automobile longitudinal beams, coverings, etc., plus the cold deformation hardening effect of materials during stamping, the stamping strength and stiffness high.
Stamping generally does not generate scraps, material consumption, and no other heating equipment, which is a saving material, energy-saving processing methods, the lower the cost of stamping parts. Metal stamping parts can be processed into parts with larger size and more complex shapes, such as stopwatches and coverings that are as small as watches, plus the cold deformation hardening effect of stamping materials. The stamping strength and rigidity are higher.
Metal stamping parts processing is the power of conventional or special stamping equipment, so that the sheet material in the mold directly by the deformation force and deformation, so as to obtain a certain shape, size and performance of the production of parts of the technology. Sheets, moulds and equipment are the three elements of stamping. Stamping is a kind of metal cold deformation processing method. Therefore, it is called cold stamping or sheet stamping, referred to as stamping. It is one of the main methods of metal plastic processing (or pressure processing), and it is also affiliated with material forming engineering technology.
Due to the superiority of stamping, stamping processing has a wide range of applications in various fields of the national economy. For example, there are stamping and processing in aerospace, aviation, military, machinery, agricultural machinery, electronics, information, railways, post and telecommunications, transportation, chemicals, medical equipment, household appliances and light industry. Not only is it used by the entire industry, but everyone has direct contact with stamping products. There are many large, medium and small stampings on airplanes, trains, cars and tractors. Car body, car
Frames and rims and other parts are processed from metal stamping parts. According to relevant survey statistics, 80% of bicycles, sewing machines and watches are stamping parts; 90% of televisions, tape recorders and cameras are stamping parts; there are food metal shells, steel refining boilers, enamel bowls and stainless steel cutlery. All are stamping products using molds; even the hardware of the computer lacks stamping parts. However, the die used in the punching process is generally dedicated, and sometimes a complex part needs several sets of die to be processed and formed. The precision of the die manufacturing is high and the technical requirements are high. It is a technology-intensive product. Therefore, only in the case of large production volume of stamping parts, the advantages of stamping can be fully reflected, so as to obtain better economic benefits.
Of course, there are some problems and shortcomings in stamping. Mainly in the punching process noise and vibration two kinds of pollution, and operator safety accidents occur from time to time. However, these problems are not entirely due to the stamping process and the mold itself, but mainly due to the traditional stamping equipment and the backward manual operation.