What are the principles of stamping process design in stamping parts processing plants?

In the stamping parts processing plant, the various processes are in sequence. The stamping sequence is based on the shape of the workpiece, the dimensional accuracy, and the law of material deformation. There are certain principles during processing. , The main points are as follows: 1. For stamping parts with holes or gaps in the stamping parts processing plant, when selecting a single-process die, it usually blanks the material first and then punches or notches. When selecting a progressive die, the blanking arrangement is The final process; 2. If there are two holes of different sizes and close positions on the workpiece, punch the big hole first and then the small hole to avoid the deformation of the small hole caused by the material deformation when the big hole is punched; 3. Stamping parts processing For bent parts with holes, under normal circumstances, the holes can be punched and then bent. When the holes are located in the bending deformation zone or close to the deformation zone, and the hole and the reference plane have high requirements, they should be bent first and then punched. ; 4. For the drawing and stamping parts with holes, the stamping parts processing factory generally stretches first and then punches. When the position of the hole is at the bottom of the workpiece and the dimensional accuracy of the hole is not high, it can be punched before deep drawing. This can reduce the number of drawing times; 5. For multi-angle bending parts, the bending sequence should be arranged from the influence of material deformation and the deviation trend of the material during bending. Generally, the outer corners should be bent first and then the inner corners; 6. For complex drawing parts of rotating bodies, generally First stretch the large-size shape, and then stretch the small-size inner shape. For complex non-rotational drawing sizes, the small-size inner shape should be stretched first, and then the large-size outer shape; 7. Shaping process , Leveling process, trimming process, etc., are all arranged after the basic forming; recommended article: In the stamping process, what state should the press be ensured? Previous post: What are the deep drawing characteristics of large curved surface drawing parts?