Description:The hardness testing of metal stamping parts mainly adopts Rockwell hardness tester, while small metal stamping parts with complex shape can be used to test small plane, but it can not be tested on ordinary desktop Rockwell hardness tester.
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Metal metal stamping parts
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The hardness testing of metal stamping parts mainly adopts Rockwell hardness tester, while small metal stamping parts with complex shape can be used to test small plane, but it can not be tested on ordinary desktop Rockwell hardness tester.
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The hardness testing of metal stamping parts mainly adopts Rockwell hardness tester, while small metal stamping parts with complex shape can be used to test small plane, but it can not be tested on ordinary desktop Rockwell hardness tester
the processing of metal stamping parts includes blanking, bending, deep drawing, forming, finishing and other processes. The materials for processing metal stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials, such as carbon steel plate, alloy steel plate, spring steel plate, galvanized plate, tinplate, stainless steel plate, copper and copper alloy plate, aluminum and aluminum alloy plate, etc
five methods to reduce the concavity and convexity of metal stamping parts. The specific methods are as follows:
1. Inspection and correction of drawing die: the drawing die needs regular inspection and maintenance to reduce the generation of concavity and convexity of metal stamping parts and maintain a stable state. The usual practice is to use a sample to check the bonding scratch of the blank holder ring and the condition of the machined surface (concave die fillet and convex die fillet)
2. Inspection and correction of shearing die: the reason for the convex concave of metal stamping parts after the shearing process is that iron powder is produced in the shearing process, so it is necessary to observe the iron powder before stamping to avoid convex concave
3. Appropriate manipulator speed: for semi-automatic drawing die production, when the drawing punch is in the lower die position and the manipulator speed is very fast, the burr will fall on the upper part of the punch, causing the convex and concave of hardware stamping parts. In order to avoid this problem, we can do the discharge test of the parts before production, and reasonably set the speed and discharge angle of the manipulator so that it will not touch the parts and the lower die
4. Check the cross-section: when cutting the coil, the wear and damage of the cutting die will produce a lot of tiny iron powder attached to the cutting edge. Therefore, before metal stamping production, it is necessary to check the double cross-section in the material area or stamping line, and clean the sheet metal in time to remove burrs
5. Inspection of sheet metal cleaning device: abide by the contract before metal stamping production, and check and repair the cleaning installation at the same time, so that it may clean the sheet metal more effectively, which is also very necessary, and pay attention to the roller clearance and the quality of cleaning oil
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