Analysis of Die Failure Factors in Production of Stamping Dies

Die failure is the most prone problem in the production of stamping dies. It often results in production suspension and affects the production cycle. Mold damage Mold damage refers to the cracking, breaking, and opening of the mold. To deal with mold damage, it is necessary to look for the reasons from the mold design, manufacturing process, and mold use. Therefore, it is necessary to find the cause of the mold failure as soon as possible and maintain it properly.

First of all, it is necessary to check whether the manufacturing materials of the mold are appropriate and whether the corresponding hot-buried process is reasonable. In general, the heat treatment process of the mold material has a great influence on it. If the quenching temperature of the mold is too high, the quenching method and time are not reasonable, and the number of tempering times and temperatures, improper selection of the elbow, will lead to damage after the mold into the stamping production. Blanking hole size or depth design is not enough, easy to block the slot hole, resulting in damage to the blanking board.

The spring force design is too small or the contour height is not equal, the spring will break and the blanking plate will lean. Caused overlapping punching and damaged parts. Improper fixing of the punch or insufficient screw strength. Will cause the punch to drop or break. When the mold is used, the installation position, direction, etc. of the parts are incorrect or the bolts are not fastened.

Work height adjustment is too low and guide column lubrication is insufficient. Feeding equipment failure, abnormal press, etc., will cause damage to the mold. Huaxia Mould Network stated that if foreign matter enters the mold, the parts overlap, and the waste is not treated in a timely manner and the processing is continued, it will easily damage the blanking plate, punch, lower template and guide post of the mold.