Causes and preventive measures for the bumps and bumps of metal stamping parts

Most of the causes of metal stamping parts are caused by dust or iron filings attached to the raw materials or the appearance of the mold. How do we avoid this problem? Let’s briefly talk about it below; several measures to prevent metal stamping parts are as follows: 1. Inspection and correction of the drawing die of the metal stamping die: the drawing die needs to be regularly inspected and maintained to reduce the occurrence of bumps and maintain a stable state. The usual method is to use samples to check the bonding scratches and processing surfaces of the blank holder (die fillet, punch fillet). 2. Inspection and correction of the cutting die of the metal stamping die: The reason for the unevenness after the cutting process is that the iron powder is produced during the cutting process, so the iron powder must be observed before the punching to avoid the occurrence of the unevenness. 3. Proper manipulator speed: For semi-automatic drawing die production, when the drawing punch is at the lower die position and the manipulator speed is fast, burrs will fall on the upper part of the punch, causing bumps. In order to avoid this kind of problem, we can do a discharge test of the part before production, and set the speed and discharge angle of the manipulator reasonably so that it will not touch the part and the lower mold. 4. Check the cut surface: When cutting the coil material, the wear and breakage of the cutting die will produce a lot of tiny iron powder attached to the cutting edge, so the double cut surface must be checked in the material area or the press line before stamping production, and cleaned in time The sheet is deburred. 5. Inspection of the sheet cleaning device: Before the production of metal stamping parts, it is necessary to inspect and trim the cleaning and installation at the same time, so that it may clean the sheet more effectively. This is also very necessary, and it is also necessary to pay attention to the roller gap and cleaning oil quality. The detailed method is to apply red paint on a steel plate to make it clean and settle. Currently, check the antecedent shape of the red paint being cancelled. If the removal rate is not up to the standard, it is necessary to check, trim, clean and settle. When the cleaning oil is lacking, it must be cut in time. Recommended article: Brief introduction of stamping parts processing equipment mechanical press Previous: Stamping parts processing plant talk about the matters needing attention in the design of automotive stamping parts