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Terminal stamping die failure reason have? ( Below)

by:Fortuna     2021-02-04
1, the fatigue failure terminal terminal stamping die stamping mould is the root cause of fatigue failure stress concentration and cyclic load. Although sometimes the load of the mould is significantly lower than the yield strength, but as a result of local stress concentration, make under low load, the stress concentration place still can form micro cracks. And mould is usually served in the condition of high strength and low plasticity, when micro cracks formation, in the mold of cyclic loading, the micro cracks easily extended and eventually lead to fatigue fracture. 2, terminal for hot-work die, stamping die of cold and hot fatigue failure when working with hot billet interact with each other, caused the surface temperature of the die. In order not to make the mould strength, must after demoulding of the mold spray cooling agent, to make it cool. This cycle, is the mould surface again and again through the process of thermal shock, the mold surface and accumulated considerable cyclic thermal stress, the stress finally released in the form of cold and hot fatigue, formation of cold and hot fatigue crack. As for the high temperature oxidation, corrosion and mould in the coolant and the friction effect between high temperature billet is accelerated the process of cold and hot fatigue. Mold working conditions are complicated, so the damage events happen, once the damage, and may promote each other between each other, eventually will accelerate terminal stamping die failure. Precision contact: wish you a prosperous business, everything goes well, if you want to learn more dynamic, can scan the qr code, pay attention to the public. , is committed to precision stamping processing factory of the world's most professional electronic components
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