1. Classification according to the nature of the process

(1) Blanking die is a die that separates materials along a closed or open contour line. Such as blanking dies, punching dies, cutting dies, incision dies, trimming dies, slitting dies, etc.

(2) Bending mold is a mold that causes the sheet blank or other blank to bend and deform along a straight line (bending line) to obtain a workpiece with a certain angle and shape.

(3) Drawing die is a mold that converts sheet blanks into open hollow parts, or allows the hollow parts to further change their shape and size.

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

2． Classified according to the degree of process combination

(1) Single-process mold A mold that only completes one stamping process in one stroke of the press.

(2) Composite mold has only one station. In one stroke of the press, two or more stamping processes are completed at the same station at the same time.

(3) Progressive die (also called continuous die) has two or more stations in the feeding direction of the blank. In one stroke of the press, at different stations A mold that completes two or more stamping processes one after another.

3. Classification according to the deformation characteristics of materials