Blanking die

Standard compact hardware is an important basic component in large quantities.Mass production of standard compact clothing, in addition to high efficiency, high precision multi-station air conditioners, but also need high quality, long life of the mold.Harbin nut punching bar can not meet the production needs, the successful development of high-quality six-sided model, compared with the current domestic mold, its service life is equivalent to the original 213t#j and imported similar mold, the price is 18 imported mold?Only l / 1.Starting from the working condition and failure analysis of the mould, the paper systematically studies the material selection of the mould, the hot and cold processing technology and the structure design of the mould.This study improved the inner quality of the mould.It is made of W6Mom5Cr4VZ steel as the blade model.By adopting new toughening techniques such as low temperature heating and graded cooling, the microstructure of complex phase matrix with high toughness and the micromicrostructure of super carbide with fine uniform circle were obtained.At the same time, fenghua nut punching bar has improved the structure design of the die, the strength of the measuring port and the stress condition.Because of the wear and fatigue failure of the previous broken blade, the life of the hexagon model is greatly improved.