The causes of metal stamping parts roughness are mostly caused by dust or iron chips attached to the raw materials or the appearance of the mold. So how can we avoid this problem? The following according to the practice of science and KAIXIN would share methods summary of reducing the roughness of metal stamping parts.
5 methods to reduce the roughness of stamping parts:
Inspection and modification of drawing dies: drawing dies need regular inspection and maintenance to reduce the generation of bumps and depressions and to maintain a stable state. It is common practice to use samples to check the bonding scratches of the blank holder and the condition of the working surface (round corner of the die, round corner of the punch).
Inspection and modification of shearing die: the cause of roughness after the shearing process is the iron powder produced in the shearing process, so the iron powder must be observed before stamping to avoid the occurrence of convexity and concavity.
Proper manipulator speed: for semi-automatic drawing die production, burr will fall on the top of the punch when the drawing die is in the bottom position and the manipulator speed is fast. In order to avoid this problem, we can do the parts of the discharge test before production, reasonable set the speed of the manipulator and the discharge Angle, so that it will not touch the parts and under the mold.
Check the cutting surface: during the cutting of the coil, the wear and tear of the cutting die will produce a lot of tiny iron powder attached to the cutting edge, so the double cutting surface must be checked in the material area or punch line before stamping production, and the burr must be removed by cleaning the plate.
Inspection of plate cleaning equipment: it is necessary to inspect and trim the cleaning equipment before stamping production to make it possible to clean the plate more effectively. It is also necessary to pay attention to the gap between rollers and the quality of cleaning oil. The detailed method is to coat a steel plate with red paint and then let it be cleaned and settled. Currently, check the shape of the antecedents of the red paint being removed. Cleaning oil shortage must be cut in time.
Master the five methods to reduce the metal stamping pieces can be as far as possible to avoid roughness and produce defective products.
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