【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。更多还原

【Abstract】 The extrusion process of Ti/Cu cladding bar was analyzed by using FEM software Deform-3D.The metal flows and the distribution 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 la-yer 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.更多还原