a. Blanking die The material is separated into molds along closed or open contours. Such as blanking die, punching die, cutting die, cutting die, trimming die, cutting die. The

b. Bending die A blank or other blank that bends along a straight line (bending line) to obtain a mold of a workpiece with a certain angle and shape. The

c. Drawing Dies are molds that make blank blanks, or further change the shape and size of the hollow parts. The

d. Molding The mold is a mold that directly reproduces blank or semi-finished workpieces according to the shapes of the convex and concave molds, but the material itself only produces local plastic deformation. Such as bulging die, shrink die, flaring die, relief forming die, flanging die, and so on. e. riveting die is the use of external force to make the participating parts connected or lapped together in a certain order and manner to form an overall classification according to the degree of process combination