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Effects of 1 stamping technology and die design and the measures for increasing the die life.
(1) effects of cold stamping with raw materials. For example: raw material thickness tolerance does not meet the requirements, material properties, surface quality is poor and is not clean
A. before stamping grade, thickness, surface quality with a raw material to carry out strict inspection
B. ensure the surface quality and clean
(2) the layout and to take the side of
Layout method and edge effect on the service life of the die is very large, nesting method for reciprocating unnecessary and too small a boundary value always cause rapid wear and die punch nibbling.
(3) the influence of die structure and orientation precision guide
The necessary and reliable guide, for reducing wear work parts, avoiding punch nibbling extremely effective.
(4) the influence of die geometric parameters
The shape, space and radius of punch and die forming has great influence not only on stamping parts, but also great effect on the die wear.
2 Effect of die materials
Effects of material properties and heat treatment quality of die on the die life is the most important factor affecting the life of the die in the factors.
Influence of 3 mold thermal processing and surface
Effects of 4 die processing technology
Surface mould processing after the rough life of die mould of great influence, so according to the article, choose the reasonable processing technology.
Effect of precision and rigidity of the 5 press
Use, 6 mold maintenance effect
Proper use, maintenance and custody of the mold is an important aspect to improve die life. It includes die correct installation and adjustment; keep the mold cleaning and reasonable lubrication; prevent miscarriage material, on the double punch die; to strictly control the depth, bottom dead center position control bending, shaping process on die; timely polishing, etc..