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摘要：
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应用Pro/E建立分流组合模的几何模型,利用锻造专用有限元软件对多腔壁板铝型材挤压过程进行数值模拟,获得挤压过程中的挤压力、应力场、速度场及金属填充和流动情况,提供了选择挤压设备的依据,对同类产品工艺开发及模具设计具有一定的指导意义。
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A solid geometry model of porthole die is built up by Pro/E.Nnumerical simulation of the porthole die extrusion of lacunaris panel is made using the forging software.The load-stroke curve can also be obtained,which is the basic information for selecting the press.The stress fields and strain fields at every step can clearly be displayed,which is a new way to study the relation between the die structure and the metal flow.It can be guided for development of this kind of product processing and die design.
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基金项目：
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作者简介：
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参考文献：
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[1]于沪平,彭颖红.平面分流焊合模成形过程的数值模拟[J].锻压技术,1999,(5):9 11.:
[2]李尚健.金属塑性成形过程模拟[M].北京:机械工业出版社,2002.
[3]Jo H H,Lee S K,Lee S B,et al.Prediction of welding pressure inthe non-steady state porthole die extrusion of Al7003 tubes[J].In-ternational Journal of Machine Tools&Manufacture 2002,42(6):753 759.
[4]孙朝华,许树勤.平面分流组合模挤压过程模拟[J].热加工工艺,2004,(4):24 25.
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