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利用有限元软件MSC.Marc建立起铜管三辊行星轧制过程的三维热力耦合有限元仿真模型,对铜管行星轧制从咬入到稳定轧制的全过程进行了有限元模拟分析。仿真结果和现场数据的对比,验证了仿真结果的正确性;分析了不同的摩擦状态对铜管行星轧制过程的影响。研究结果表明,适当增大轧制过程中的摩擦,可以减小金属滑动、减小三角形效应、减小成品的圆度误差,同时也有利于温度场的均匀分布。研究结果可为设计轧辊和调节乳化液浓度提供理论依据。
The finite element model of three-dimensional thermo-mechanical coupled finite element simulation of copper tube three-roll planetary rolling process was established by using finite element software MSC.Marc. The whole process of copper tube planetary rolling from bite to steady rolling was simulated by finite element method. The simulation results and field data are compared to verify the correctness of the simulation results. The effects of different frictional states on the copper tube planetary rolling process are analyzed. The results show that proper increase of friction in the rolling process can reduce the metal sliding, reduce the triangular effect, reduce the roundness error of the finished product, and at the same time, it is also beneficial to the uniform distribution of the temperature field. The results provide a theoretical basis for designing the roll and adjusting the concentration of the emulsion.