摘要
为了深入研究拉拔道次对铜材拉拔过程的影响,运用非线性有限元分析软件对多道次铜材拉拔过程进行仿真,并对比分析了生产用铜材多道次拉拔和双递减法所得铜材多道次拉拔对铜材等效应变、等效应力及残余应力的影响。模拟结果表明,在总延伸系数相同的情况下,对铜材拉拔道次的优化可以减少铜材拉拔中的不均匀变形,降低拉拔后铜材的残余应力,从而改善铜材拉拔质量、提高拉拔效率。对实际铜材多道次拉拔的配模优化有重要指导作用。
In order to deeply investigate the influence of drawing passes on copper wires drawing process, the nonlinear FEM software was used to simulate the whole copper wires multi-pass drawing process, and analyzed the influence of the equivalent stress, equivalent strain and residual stress of copper wires multi-pass drawing for production and multi-pass drawing by clouble degressive method. The simulation results showed that with the same total elongation factor, the optimization of copper wires drawing passes can reduce the wire asymmetry deformation and the residual stress, improve the quality of drawn copper wires and promote the drawing productivity. It is of great significance for the real copper wires multi-pass drawing.
出处
《南阳理工学院学报》
2009年第3期68-71,共4页
Journal of Nanyang Institute of Technology
关键词
铜材
拉拔
多道次
有限元
Copper wire
Drawing
Multi-pass
FEM
