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acture includes the accuracy of the punch, die, guide, and other components. The quality of the material used for the die is also important. The measure of the punching part refers to the size and shape of the part being punched, while the thickness of the panel refers to the thickness of the sheet metal being punched. The magnitude of the gap refers to the distance between the punch and die, and the degree of homogeneity refers to the consistency of the material being punched.

The conventional error is caused by wear and tear on the die during production. As the die is used more and more, the cutting edge wears down and the accuracy decreases. The limiting error is the largest error that is allowed before the die is considered unusable.

To ensure the accuracy of the punching die, it is important to regularly check and maintain the die. This includes sharpening the cutting edge, measuring the dimensions of the punched parts, and checking for burrs. By doing so, the accuracy of the punching die can be maintained and the quality of the punched parts can be ensured