1, hemming, hemming is a stamping process that rolls the edge of the workpiece into a nearly closed circle. The axis of a curled circle is linear.

2. Curling: Curling is a stamping process that rolls the upper edge of the hollow part into a nearly closed circle.

3. Drawing: Drawing is the stamping process of turning a flat blank or workpiece into a curved surface, which is mainly formed by extending the material at the bottom of the punch.

4, stretch bending, stretch bending is under the action of tension and bending moment * * * to achieve bending deformation, so that the whole bending section is in a state of tensile stress.

5. Bulging: Bulging is a stamping process that expands hollow or tubular parts radially outward. Cutting is a stamping process, which divides the forming process into several parts.

6. Leveling is a stamping process to improve the flatness of local or whole plane parts.

7. Wave-shaped forming is a stamping process that relies on the extension of materials to make the workpiece form local depressions or protrusions. The change of material thickness in undulating forming is unintentional, that is, the slight change of thickness naturally occurs during deformation, which is not the requirement of design.

8. Bending and bending means that the material is plastically deformed by pressure, so that it is bent into a shape with a certain curvature and a certain angle.

9. Chiseling: Chiseling is a punching or punching process using a sharp-edged chiseling die. There is no lower die for chiseling, only a flat plate is placed under the material, and most of the punched materials are non-metal.

10, deep hole drilling, deep hole drilling is the drilling process when the aperture is equal to or less than the thickness of the material to be drilled.

1 1, blanking, blanking is a stamping process to separate materials along a closed contour, and the separated materials become workpieces or process parts, most of which are planar.

12, necking, necking is a stamping process that compresses the opening of a hollow or tubular part to shrink it.

13, plastic, plastic is a stamping process that depends on the flow of materials to change the shape and size of the workpiece little by little to ensure the accuracy of the workpiece.

14, renovation, renovation is a stamping process to remove a small amount of material along the contour or internal shape, thus improving the edge smoothness and verticality. Generally speaking, the finishing process can also improve the dimensional accuracy.

15, hole-turning, hole-turning is a stamping process to turn the material into a side flange along the periphery of the inner hole.

16, flanging, flanging is a stamping process that turns materials into short sides along the contour curve.

17. Drawing is a stamping process that changes a flat blank or workpiece into a hollow part, or further changes the shape and size of the hollow part. In deep drawing, the center piece is mainly formed by the material outside the bottom of the punch flowing into the die.