What is the cause of the scratch on the surface of precision stampings?

  When the processed material is bent, metal particles or dust particles adhere to the surface of the working part, causing scratches on the precision stamping parts.
The embossing mode gap should not be too small, too small a gap can cause scratches.
If the radius of the concave and convex mold fillet is too small, cracks will occur in the bent part of the workpiece.
The direction of the bend is parallel to the rolling direction of the material, which can cause cracks on the surface of the workpiece and reduce the surface quality.
Too large a depth of the punch into the die can cause scratches on the surface of the precision metal stamping.

The spring on the pressure plate, the positioning pin hole, the pallet and the return hole are all pressed into the indentation

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