中南大学学报（自然科学版）2011，Vol.42Issue(10)：3020-3025,6.
超硬铝合金无缝管材挤压成形工艺优化
Optimization based on extrusion for seamless tube of super hardness aluminum alloy
摘要
Abstract
In order to reveal the crux of technology problem existing in the extrusion formation to seamless tube of aluminum alloy, the aluminum alloy 7075 was taken as example, and through numerical simulation of finite element method(FEM), technology parameters which impact the extrusion formation of aluminum alloy seamless tube were analyzed. The results show that with the increase of the extrusion velocity, the extrusion loading increases sharply and the uniformity of metal forming flow decreases in tube extrusion process. According to the analysis, at the forming conditions of temperature 430 °C and extrusion speed 2 mtn/s, the large seamless tube of aluminum alloy is formed and a fine surface quality is achieved, which meets the application criterion.关键词
铝合金/无缝管/挤压/工艺优化Key words
aluminum alloy/ seamless tube/ extrusion/ process optimization分类
矿业与冶金引用本文复制引用
李峰,林俊峰,李超,刘晓晶..超硬铝合金无缝管材挤压成形工艺优化[J].中南大学学报（自然科学版）,2011,42(10):3020-3025,6.基金项目
博士后科研启动基金资助项目(LBH-Q 10065) （LBH-Q 10065）
哈尔滨市青年科技创新人才基金资助项目(2010RFQXG021) （2010RFQXG021）
