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Cold stamping is a metal processing method, which is based on metal plastic deformation, using molds and stamping equipment to process sheet metal to obtain the required part shape and size.
The stamping process has a wide range of applications. In all sectors of the national economy, there are almost all stamping products, such as automobiles, airplanes, tractors, motors, electrical appliances, meters, railways, post and telecommunications, chemicals, and light industrial daily products. The proportion.
Comparing cold stamping and cutting processing, it has a series of advantages such as high productivity, low processing cost, high material utilization rate, stable product dimensional accuracy, simple operation, easy mechanization and automation, and is especially suitable for mass production.
1. Classification of stamping process
cold stamping process can be divided into two categories according to its deformation properties: separation process and forming process. The separation process can be divided into blanking, punching and trimming, as shown in Table 1-1. The forming process can be divided into bending, deep drawing, hole turning, flanging, bulging, flaring, necking and spinning, etc., as shown in Table 1-2. According to the shape, dimensional accuracy and other technical requirements of the product parts, various procedures can be used to process the blanks to obtain satisfactory parts.