Mold manufacturers introduce common faults of stamping dies


1. Die failure: Die damage is a common problem in stamp […]

1. Die failure: Die damage is a common problem in stamping production and life, which will cause production to stop and affect the production development cycle. Therefore, we need to find out the cause of the mold failure as soon as possible and carry out scientific and reasonable maintenance. Mold damage refers to mold cracking, fracture, expansion, etc. To solve the problem of mold damage, it is necessary to find the reason from the aspects of mold design, manufacturing and processing technology, and mold use management.
2. First check whether the mold manufacturing materials are suitable and whether the corresponding thermal processing technology is reasonable. The heat treatment process of the mold material selected by the mold manufacturer has a great influence on it. If the size or depth of the punching hole is not enough, it is easy to block the slot hole and damage the punching board. If the spring force is too small or the height of the equal-height sleeves is not equal, the spring breaks, the blanking plate is tilted, and the blanking overlaps and damages the accessories. Improper fixing of the punch or insufficient screw strength may cause the punch to fall or break.

3. Die stuck: If the die is not flexible or even stuck during the stamping process, it is necessary to stop production, find out the cause of the stuck die, and eliminate the system failure. Otherwise, the failure will be enlarged and the mold will be damaged. The cause of jamming is poor guidance and tilting of the mold. Or there are foreign objects between the templates, which make the templates unable to be flat; the strength design of the mold is not enough or the force is uneven. The mold is deformed, and the hardness and thickness of the mold base and template are too small, and they are easily deformed by external force; the mold position installation method is incorrect, and the upper and lower mold positioning analysis error is greater than the specified range. The punch strength is not enough, and the position of the big and small punches is too close, which makes the lateral force of the die unbalanced.