Compared with other methods of mechanical processing and plastic processing, stamping process has many unique advantages both in technology and economy. The main performance is as follows.
(1) the production efficiency of stamping process is high, and the operation is convenient, easy to realize mechanization and automation. This is because the stamping dies and stamping equipment rely on to complete the processing, ordinary press trips per minute up to dozens of times, high pressure per minute up to hundreds or even thousands of times, and each press stroke may get a red piece.
(2) when the stamping die to ensure the dimension and shape precision stamping parts, and generally do not damage the surface quality of stamping, and die life is generally longer, so the stamping quality, good interchangeability, “as like as two peas” feature.
(3) stamping processing size range is large, complicated shape parts, such as a small clock stopwatch, large car rails panels, plus the stamping material hardening effect of cold deformation, punching strength and stiffness were higher.
(4) stamping process is generally not cut, the material consumption is less, and no need of other heating equipment, so it is a kind of material saving, energy saving processing method, stamping parts cost is low.
Main application of stamping process
Because stamping has such advantages, stamping processing in various fields of the national economy wide range of applications. For example, in the aerospace, aviation, military, machinery, agricultural machinery, electronics, information, railways, posts and telecommunications, transportation, chemical industry, medical equipment, household electrical appliances and light industry and other departments have stamping processing. Not only the entire industry is used it, but everyone is directly related to the production of stamping products. Like airplanes, trains, cars, tractors, there are lots of big, medium and small stamping parts. Car body parts, frame and rim are punching out. According to the survey, bicycles, sewing machines, watches there are 80% stampings; TV, tape recorders, video cameras there are 90% stamping parts; and food metal shell, steel boiler, enamel basin and stainless steel tableware, all products using stamping dies; even the lack of computer hardware is also not stamping.
However, stamping dies used in general is specific, sometimes a complex part needs several sets of molds can be formed, and the mold manufacturing of high precision, high technical requirements, is a technology intensive products. Therefore, only in the case of large quantities of stamping parts production, the advantages of stamping process can be fully reflected, thereby obtaining better economic benefits.
Of course, there are some problems and shortcomings in the stamping process. Mainly displays in the stamping process noise and vibration of the two kinds of public hazards, and the operator’s safety accidents have occurred. However, these problems are not entirely due to the stamping process and the mold itself, but mainly due to the traditional stamping equipment and backward manual operation caused by. Along with the progress of science and technology, especially the development of computer technology, with the progress of mechanical and electrical integration technology, these problems will be solved as soon as possible.