1. Punching dies, dies that make material separation along closed or open contour lines. Such as often see the die inside the drop die, punching die, cut off die, cutting die, cutting edge die, cutting die, etc., these are to play the role of punching, so collectively referred to as punching die.
2. Deep drawing die is a die that uses the die to pull the material into an open hollow part, or make the hollow part further change its shape and size.
3. Forming die, is the blank or semi-finished workpiece according to the shape of the convex and concave die directly copy forming, and the material itself only produce local plastic deformation of the mold. Such as expansion die, indentation die, flaring die, undulation forming die, flanging die, shaping die, etc.
4. Riveting die is to use external force to make the participating parts connected or lapped together in a certain order and manner, thus forming a whole.