Deformation: cold stamping die convex and concave die shape deformation happened in used, made by processing the product parts, geometry shape change, which affect the dimensional accuracy and shape of the processed parts requirements.
It is the opposite of fracture situation, is mainly due to the convex and concave die in the process of heat treatment quenching hardness is not enough or quenching hardness layer is too shallow, but makes the convex and concave die in the process of mechanical geometry deformation occurred.
Fracture: cold stamping die convex and concave die in use process, sudden breakage, cracks and fracture phenomenon.
Handling, the main reason is: heat treatment processing in the design and the small gap will be damaged when tooling convex and concave die, fracture and fracture.
Die fracture of convex and concave die, have a plenty of local damage, we can continue to use after repair, some is the degree of fracture damage is larger or damage cannot be completely repair again, had to design separately according to the drawing configuration used after new punch or die.
Abrasion: cold stamping die convex and concave die and long frequent friction between processed material, caused by the wear and tear.
Because the convex and concave die in long time friction between and processed materials, large quantities of cutting machining parts for a long period of time, blanking parts burr is too large, convex and concave gap is too small, etc. , are part of the convex and concave die edge caused by wear and tear.
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