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5 ways to reduce the bumps of metal stamping parts
Five methods to reduce the unevenness of metal stamping parts: 1. Inspection and correction of drawing dies: Regular inspection and maintenance of drawing dies are required to reduce the occurrence of unevenness and maintain a stable state. The usual method is to use samples to check the bonding scratches of the blank holder and the processing surface (concave round corners, punch round corners). 2. Inspection and correction of the shearing die: The reason for the unevenness after the shearing process is that iron powder is produced during the shearing process. Therefore, the iron powder must be observed before punching to avoid the occurrence of 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 the discharging test of the part before production, and set the speed and discharging 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 sheet material cleaning device: It is necessary to inspect and trim the cleaning device at the same time before stamping production, so that it may clean the sheet material more effectively. This is also very necessary, and it is also necessary to pay attention to the roller gap and the quality of the cleaning oil. 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