Failure form of drawing die

After the 　　 wire drawing die is installed and debugged, qualified workpieces can be produced normally. This process is called the service of the die. In general, we always hope that the mold can have a long enough service life to meet the actual needs of production.

However, the mold may have some defects during the manufacturing process, or some defects may gradually appear in the service process, such as micro-cracks, slight wear, deformation, etc. Under this condition, the mold can continue to work although there are hidden dangers This state of being defective but not losing service capability is called mold damage.

　　 The drawing die is damaged for some reason, or the die damage accumulates to a certain extent, causing the die to be damaged and unable to continue service, which is called die failure. In production, when the main working parts of the mold are damaged and no qualified workpiece can be punched out, the mold is considered to be invalid. The failure modes of stamping dies are generally plastic deformation, wear, fracture or cracking, metal fatigue and corrosion, etc.