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 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 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.
展开▼
