In the field of stamping, the maintenance cycle of the mold is often affected by the growth of burrs from punching. Therefore, by observing the punching process and setting reasonable punching clearance, we can make a preliminary judgment on the life of the mold. When the punching shape contains sharp corners, the generation of burrs will accelerate due to the potential for knife breakage. To solve this problem, an effective method is to make the sharp corners more blunt. The choic
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