重型机械Issue(1)：53-58,6.
TC4钛合金型材热挤压过程坯料温度演变规律研究
Research on devolvement rule of billet temperature of TC4 titanium alloy profile in hot extrusion process
魏慧慧 1余心宏1
作者信息
- 1. 西北工业大学 材料学院，陕西 西安710072
- 折叠
摘要
Abstract
The numerical simulation method was used to analysis the coupling thermal-mechanical behavior in H-section profile extrusion process of TC4 titanium alloy.The distribution of billet temperature and the effect regularity of different process parameters on the billet temperature were obtained.The results showed that the billet temperature increases significantly in the stable extrusion stage,heat production and heat radiation reached dynamic balance .Billet temperature of fillet was higher than that in other parts of the blank.With the increasing of extrusion speed,friction factor,extrusion ratio and the die preheating temperature,the billet temperature rise increased,while the billet temperature rise decreased with increasing of the preheating temperature of billet.The billet temperature drop changed on the contrary rules.The optimal extrusion process was obtained finally.关键词
钛合金/挤压/型材/数值模拟Key words
titanium alloy/extrusion/profile/numerical simulation分类
矿业与冶金引用本文复制引用
魏慧慧,余心宏..TC4钛合金型材热挤压过程坯料温度演变规律研究[J].重型机械,2015,(1):53-58,6.
