In order to protect the normal production, improve the quality of stamping parts, reduce costs and prolong the life of the die, it is necessary to use and maintain the die correctly and reasonably, strictly implement the "three checks" system of the die (check before use, check during use and check after use), and do a good job in the maintenance and repair of the die.

Its main tasks include the correct installation and debugging of the die; strict control of the depth of the punch into the die; control of the extension of the lower stop point of the upper die in the process of correcting bending, cold extrusion and shaping; timely re-grinding and polishing of the chess tool edges; and pay attention to maintaining the clean and reasonable lubrication of the chess tool and other punch edge ends to repair oblique or arc. This is an effective way to reduce cushioning cuts. By reducing the buffer cutting force, the tensile force on the side of the die can be reduced, and the effect of turning over and twisting of the stamping parts can be restrained.

Correct use and reasonable maintenance of the die are of great importance to improving the life of the die.