Multi-cell homogeneous-metal stacked-forging method for producing die steel module
A multi-unit, die steel technology, applied in the field of forging, can solve the problems of difficult to guarantee the internal metallurgical quality of the steel ingot, the influence of the yield, the consumption of large working hours and fuel, etc., and achieve significant economic benefits, improve the utilization rate, and reduce energy consumption.
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[0047] according to Figure 1~4 The specific steps of the present invention are described in detail. The method for producing die steel modules by multi-unit homogeneous metal stack forging includes:
[0048] Step 1, in order to select a rolling slab of a suitable size, calculate the influence of factors such as the strain required for welding and temperature according to the material, so as to determine the cross-sectional size of the slab unit.
[0049] Based on the change of forging void defects in the plastic processing process studied by Jin Ning et al., the pressing mechanism, conditions and criteria of forging internal void defects in the plastic processing process are studied by using mathematical analysis method. Based on the basis, the criterion of internal void defects of press-fit forgings was deduced, and the closing law, closing path and closing speed of forging internal columnar voids in forging process of FM method, WHF method and V-shaped anvil were discussed...
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