(1) The blanking die separates the material along a closed or open contour. Such as blanking die, punching die, cutting die, cutting die, trimming die, sectioning die, etc.

(2) Bending die is a die that causes the blank or other blanks to bend and deform along a straight line (bending curve), so as to obtain a workpiece with a certain angle and shape.

(3) Drawing die is a kind of die that can make blank blank into open hollow parts or further change the shape and size of hollow parts.

(4) The forming die is a die that directly copies the blank or semi-finished workpiece according to the shape of the convex and concave die, while the material itself only produces local plastic deformation. Such as bulging die, necking die, expanding die, undulating forming die, flanging die, shaping die, etc.