Effects of multi-step welding chamber on extrusion product quality and die strength

摘要：

　　The shape of welding chamber is a key parameter in flat porthole die extrusion process,which influences product quality and die life-span directly.In this paper,by means of numerical simulation of the extrusion process for an aluminum hollow profile,the effects of multi-step welding chamber on metal flow and die strength have been investigate.The numerical results revealed that the multi-step welding chamber was effective to balance metal flow in the die cavity.In addition,with an increasing step of welding chamber,the maximum stress and deflection of the lower die decreased,while the deflection of the mandrel kept almost unchanged and the maximum stress of upper die increased.

关键词： Aluminum profile Extrusion Multi-step welding chamber HyperXtrude

作者: Hao Chen Guoqun Zhao Cunsheng Zhang Daosheng Wen

作者单位: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education), Shandong University, Jinan, Shandong 250061, P.R.China

会议类型: 国际会议

会议名称: the 2010 International Conference on Frontiers of Manufacturing and Design Science(第一届制造与设计科学国际会议(ICFMD 2010))

会议地点: 重庆

会议语种:英文

页码: 311-315

在线出版日期: 2010-12-11（万方平台首次上网日期，不代表论文的发表时间）