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The types and usage characteristics of precision stamping parts. We need to understand the types and usage characteristics of automotive precision stamping parts before we can choose raw materials for automotive precision stamping parts. Only in this way can we choose suitable metal materials according to product types and usage characteristics. Not only It can guarantee the quality of the product, improve the efficiency of the use of raw materials, and prolong the service life of automobile stamping parts.

With a good production process, in addition to selecting the type and use characteristics of automotive stamping parts, it is also necessary to choose relatively good process performance, so that the precision stamping parts produced can have good practicability.

Cold stamping process is currently used in the production process of automotive stamping parts. The quality of cold stamping materials will directly determine the performance, service life and cost of the product. Therefore, it is necessary to choose economical and suitable stamping materials according to the requirements.

Hardness testing, different processing techniques of precision stamping parts require plates of different hardness levels, hardness testing of precision stamping parts materials, the purpose of this is to determine the metal

1. Principle of drawing technology for precision stamping parts

Precision stamping part stretching technology uses a mold to exert tensile force on the surface of the workpiece, thereby deforming the workpiece. By controlling the magnitude and direction of the tensile force during the forming process, the material can be stretched and formed. During the stretching process, the material undergoes axial and circumferential plastic changes, thereby changing the shape and size of the workpiece 

The key to the drawing technology of precision stamping parts is the reasonable selection of the mold shape and the location where the tensile force is applied. By changing the shape of the mold and the location where tension is applied, stretch forming of different shapes can be achieved. At the same time, the magnitude and speed of the pulling force need to be controlled to avoid local overstretching or breakage.

The drawing process of precision stamping parts under a continuous mold uses metal sheets as raw materials, and deforms the metal sheets into the required shape through the coordinated action of the continuous mold. The process generally includes three steps: feeding, stretching and demoulding

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