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针对Inconel 718合金环件径-轴双向轧制过程,应用响应面法(RSM)和有限元法(FEM)对径-轴双向轧制的主要动力学参数进行了联合优化。为了综合考虑环件的成形质量,以环件热力参数的均匀性、体积损失系数及轧制力作为优化目标,建立了有限元模拟与响应面法相结合的二阶响应模型。基于模拟结果及响应模型,系统分析了各个变量对环件最终成形质量的影响规律,得到了最优双向轧制的动力学参数组合。
The main dynamic parameters of radial-shaft bidirectional rolling were optimized by response surface method (RSM) and finite element method (FEM) for the Inconel 718 ring-axis bi-directional rolling process. In order to comprehensively consider the forming quality of the ring, the second-order response model combining the finite element simulation with the response surface method is established by taking the uniformity of the thermal parameters of the ring, the volume loss coefficient and the rolling force as the optimization objectives. Based on the simulation results and the response model, the influence of each variable on the final forming quality of the ring was systematically analyzed, and the kinetic parameter combination of the optimal two-way rolling was obtained.