钛铜复合棒挤压过程的数值模拟  

The Numerical Simulation of the Extrusion Process of Ti/Cu Cladding Bar

作　　者：王腾[1] 朱梅生[2] 吴欢[2] 曾卫东[1] 倪沛彤[2] 王成长[2] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,西安710072 [2]西北有色金属研究院,西安710016

出　　处：《材料导报》2012年第24期145-147,共3页Materials Reports

基　　金：教育部"新世纪优秀人才支持计划"(NCET-07-0696)

摘　　要：采用Deform-3D有限元软件对扁形钛铜复合棒的挤压过程进行了数值模拟研究,得到了挤压过程中钛和铜的流动规律及应变场分布,分析了挤压速度对产品表面质量、钛铜相对滑移量及钛层厚度的影响。结果表明:随挤压速度的加快,钛铜相对滑移量增加,而钛层厚度变化不大;当挤压速度为100mm/s时挤压产品的质量最好。The extrusion metal flows and the distribution process of Ti/Cu cladding bar was analyzed by using FEM software Deform-3D. The of equivalent strains were obtained at different stages of the extrusion process. The effect of the extrusion speed on the surface quality, relative slippage of Ti/Cu layers and the thickness of titanium layer were also discussed. The results show that with the increase of the extrusion speed, the relative slippage of Ti/Cu layers increased, but the thickness of titanium layer almost remained unchanged. The optimal extrusion speed of Ti/ Cu cladding bar for obtaining good surface quality is 100mm/s.

关 键 词：钛铜复合棒 挤压 数值模拟 

分 类 号：TG376[金属学及工艺—金属压力加工]