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在生产中,人们通常只把5CrMnMo钢作为热模具钢使用。我们用它制成冷镦模,经试用和几年的实践证明,采用5CrMnMo钢制造六方冲、四方片等多种冷镦模效果良好,比原用9SiCr、Cr12MoV等钢制冷镦模具有性能稳定、工艺简单、成本低、寿命长等优点。一、选材的依据冷镦冷挤模常用T10A、9SiCr、Cr12MoV等几种钢材制造,热处理后硬度在HRC59～61,使用时失效形式为崩刃、破断或折断;若降低硬度则
In production, people usually only 5CrMnMo steel used as hot die steel. We use it made of cold heading die, the trial and years of practice has proved that the use of 5CrMnMo steel hexagonal red, Sifang tablets and other cold heading die a good effect than the original 9SiCr, Cr12MoV steel and other steel upsetting die with stable performance , Simple process, low cost, long life and other advantages. First, the selection of materials Cold heading die extrusion commonly used T10A, 9SiCr, Cr12MoV and other types of steel, heat treatment after the hardness of HRC59 ~ 61, the use of failure form collapse, broken or broken; if you reduce the hardness