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How to deal with the unevenness of metal stamping parts?

by:Fortuna     2021-03-07
In the production process of metal stamping parts, there are often some product defects, such as unevenness. Most of the unevenness of the stamping parts is caused by iron filings or dust attached to the raw material or the mold. How to deal with the unevenness problem? Precision, with an experienced technical team and precision mold technology, we will give you a brief analysis. 1. Inspection and correction of the drawing die: The drawing die needs to be regularly inspected and maintained to reduce the occurrence of unevenness 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 shearing die: the unevenness after the shearing process is due to the iron powder produced during the shearing process. Therefore, the iron powder should 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, the burrs will fall on the upper part of the punch, causing bumps. We can do the discharging test of the part before production, and reasonably set the speed and discharging angle of the manipulator 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 it is necessary to check the double cut surface in the material area or the press line before stamping production, and clean it in time The sheet is deburred. 5. Inspection of sheet metal cleaning device: It is necessary to inspect and trim and clean at the same time before stamping production, and also pay attention to the quality of the roller gap and the cleaning oil. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automotive stamping parts molds Learn more: Points to note in the design of continuous stamping dies
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