Testing method of stamping parts

Testing method of stamping parts

Put the stamping parts into the inspection fixture, and inspect the stamping parts according to the operating requirements of the inspection fixture manual.

In actual production, process tests similar to the stamping process are often used to test the stamping performance of the material, such as drawing performance test, bulging performance test, etc., to ensure the quality of the finished product and a high pass rate.

The precision and structure of the mold directly affect the forming and precision of the stamping parts. The manufacturing cost and life of the mold are important factors affecting the cost and quality of stamping parts. Mold design and manufacturing require a lot of time, which prolongs the production preparation time of new stamping parts.

The standardization of die bases, die frames, and guide parts and the development of simple molds (for small batch production), compound molds, multi-station progressive molds (for mass production), as well as the development of rapid die change devices, can reduce the workload and shorten the preparation time for stamping production, and can make the stamping technology suitable for mass production reasonably applied to small batch and multi-variety production.

In addition to the forming of thick plates with hydraulic presses, stamping equipment generally uses mechanical presses. Conveying machinery, mold library and fast mold change device, and computer program control can form a high-productivity automatic stamping production line.

In the case of producing dozens or hundreds of stamping parts per minute, the feeding, stamping, parts output, waste discharge and other processes are completed in a short time, and personal, equipment and quality accidents often occur. Therefore, safe production in stamping is a very important issue.

In the stamping process, the temperature of the general workpiece will rise quickly during the stamping process, especially in the cold forging stamping process, so lubrication products must be added. If no lubrication is used and directly stamped, welded-assembled, parts without oil on the surface are easy to weld and assemble.

Research and practice have shown that Aimeike metal inert gas arc welding, tungsten gas shielded arc welding, and resistance welding have excellent results.