摘自清华大学机械工程系研究生张新泉的博士学位论文,导师:王祖唐,金其坚 本文用刚塑性有限元法和热分析建立钨丝拉拔过程速度场与温度场的计算模型,论述了耦合计算的原理、公式和方法。利用耦合热分析的刚塑性有限元法,综合考察了拉丝工艺中主要工艺因素的影响,使计算机数值模拟更接近实际生产情况。通过速度场和温度场的耦合数值计算,获得了钨丝拉拔加工过 From the Department of Mechanical Engineering, Tsinghua University Zhang Xinquan PhD thesis, Tutor: Wang Zu-Tang, Jin Qijian Rigid-plastic finite element method and thermal analysis of tungsten wire drawing process to establish the velocity field and temperature field of the calculation model, discussed the principle of coupling calculation , Formulas and methods. The plastic-plastic finite element method coupled with thermal analysis was used to comprehensively investigate the influence of the main process factors in the drawing process so as to make the numerical simulation of the computer closer to the actual production. Through the coupling of the velocity field and the temperature field, the tungsten wire drawing process was obtained