【摘要】 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更多还原

【Abstract】 This paper presents the mechanism of increasing the service life of combined shrunk-on mould and points out the range of pretightening force and magnitude of interference.The mould structure for extrusion molding of brass cartridge part and the related technology are also introduced更多还原