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本文提出了组合式套装模具使用寿命提高的机制 ,着重指出了预紧压力及过盈量数值的范围 ,介绍了黄铜弹药筒零件挤压成型时模具的结构及有关工艺
In this paper, the mechanism of the service life of the modular tooling is put forward. The range of pre-tightening pressure and the amount of interference is emphatically pointed out. The structure and related process of the mold during the extrusion process of brass cartridge parts are introduced