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The reason for the rapid wear of the punch in the punching machine

2020-12-10 10:26:40
Times

Our company is a well-known manufacturer specializing in the production of punching machines. Do you know the reason why the punches of punching machines wear too fast? This is what the editor wants to share with everyone based on the article. Let's take a brief look below:




1. The mold gap is too small. Generally, the total mold gap is recommended to be 20% to 25% of the material thickness.




2. The centering of the concave-convex mold is not good, including the mold base, mold guiding parts and insufficient accuracy of the turret insert, etc., which leads to poor mold centering.

punch

3. The temperature of the punch is too high, mainly because the punch is overheated due to continuous long-term pressing of the same mold.




4. Improper method of mold grinding, resulting in mold annealing and increased wear.




5. Part of the unilateral shearing pressure, such as nibbling, angle of attack or shearing, the side force will make the punch heavier on one side, and the gap on this side will decrease, resulting in serious mold wear. If the machine tool mold installation accuracy is not high, serious The punch will deviate from the upper die, causing damage to the punch and die.


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