铜排连续挤压力能的工程法计算

Yu Meng, Dai Nana,Zhong Yi

Zhongguo Jixie Gongcheng/China Mechanical Engineering(2012)

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Abstract
采用工程法对连续挤压铜排的力能进行了计算,得到了连续挤压铜排模腔入口挤压应力的解析表达式及挤压应力随产品厚度和宽厚比变化的规律.考虑到溢料和堵头对挤压轮产生的扭矩,对204.5mm×7.5mm铜排连续挤压的功率进行了计算,并将其与实验中的实测值进行比较,二者误差为12%,能满足工程计算的需要.因此,该方法可为模具设计和合理选择铜排连续挤压设备提供参考.
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Key words
Continuous extrusion,Copper bus bar,Extrusion pressure and power,Slab method
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