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How to design the mold clearance when the stainless steel stamping parts production?

by:Fortuna     2021-01-31
Stainless steel stamping parts blanking clearance refers to the cutting edge of punch and die in the space between. Stainless steel stamping hedge cutting blanking clearance process has very big effect. In addition, the clearance hedge pressure and mould life also has a great influence. Gap is very small, enhanced material extrusion and friction, blanking force must be bigger. Can cause fracture separation, thus will reduce the cutting force. Stainless steel stamping parts we take reasonable clearance blanking clearance, the reasonable gap has the maximum and the minimum. In the design and manufacture of mould is usually take the smallest reasonable clearance. There are two methods for determining reasonable clearance. Theoretical calculation method and the experience to determine the method of stainless steel stamping parts blanking clearance to influence the life of the mold, the life of the mold is made of die failure before rushing too qualified to represent the number of blanking pieces, failure has a lot of, in the form of common failure forms have higher wear deformation and concave die cracking. The size of the gap of mould wear and die crack had a great effect. After mould blade wear, it will make the passivation, gap will increase, this results in the decrease of the size precision of parts, the section will be rough. Passivation edge crack occurrence point from the blade will face to lateral movement, and produce burr, burr generated in pieces, so you have to watch as much as possible to reduce mold wear. Can be seen from the above analysis of the force, stainless steel stamping parts blanking clearance of hedge cutting quality and life has a great influence, but this influence can't predict in advance, in the actual production of stamping, blanking pieces in order to obtain the qualified and will ensure that the service life of mould must choose reasonable clearance. Here by empirical method to determine the clearance value. Take reasonable maximum clearance 0. 36 mm, reasonable minimum clearance is 0. 25mm。 Can satisfy the demands of all stainless steel stamping parts design reasonable clearance is not possible, must pass through the comprehensive analysis of the trade-off in this way can improve the mould working conditions, and can obtain remarkable economic effect. In the mold design and manufacturing can be smoothly' Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps
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