Stamping and forming The stamping process can be divided into two categories: separation process and forming process. Separation process: The separation process refers to the process of separating the blank along a certain contour line to obtain a stamping part of a certain shape, size and cross-sectional quality.
Stamping forming: The forming process refers to the process of plastically deforming the blank without breaking to obtain a stamping part of a certain shape and size.
1. The difference between the separation process and the molding process
1. Different purposes
Separation process: The purpose of the separation process is to divide the blank into multiple stamping parts according to a certain outline.
Forming process: The purpose of the forming process is to obtain a certain shape and size without breaking the blank.
2. The principle is different
Separation process: During the separation process, the plate produces local elastic stretching and bending deformation, and plastic deformation is formed when the stress in the deformation zone meets the yield condition.
Forming process: During the forming process, the sheet is plastically deformed but not broken.
3. Different operation
Separation process: The separation process includes blanking punching, shearing, edge trimming, notching, slicing and other operations.
Forming process: The forming process includes bending, twisting, stretching, turning, flanging, shrinking, spinning and other operations. 2. Characteristics of separation process and molding process
Separation process: The feature of the separation process is that the dimensional accuracy is improved by cutting off the rough layer on the punching surface; it has the advantages of high punching quality and high efficiency.
Molding process: The molding process has the advantages of high material utilization, high efficiency, convenient operation, long service life of the mold, and low production cost.
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