作　　者： ; ; ; (甄玉）; (郭书奇）;

机构地区： 大连理工大学材料科学与工程学院材料科学与技术系

出　　处： 《钢铁》 2005年第12期50-54,共5页

摘　　要： 基于三维热-机耦合有限元分析方法建立了刚性体推动模型,模拟棒线材多道次连轧过程。刚性体推动模型与常规有限元模型的比较结果说明刚性体推动模型可以在获得相同的精度前提下,显著地提高运算效率。将所建立的有限元模型应用于304不锈钢粗轧过程的数值模拟,得到了轧件6道次连轧过程的温度场、应变场和轧件的变形过程,并比较了各道次的轧制力模拟结果和轧机许用轧制力。温度场的模拟结果与测量结果的比较证明了模型的可靠性。 A rigid pushing model based-on 3D thermo mechanical coupled analysis with FEM was used to simulate wire and rod multi-pass continuous rolling process. The comparison of the rigid pushing model and a conventional FE model shows that the rigid pushing model can greatly improve the efficiency of the simulation with the same accuracy. The developed FE model was used to simulate six pass rough rolling process for 304 stainless steel. The temperature field, strain field and billet deformation were obtained by calculation. The simulated rolling force of each pass was compared with permissible load. The validity of the proposed model was examined through comparison of temperature simulation results and measured ones.

关 键 词： 有限元 棒线材 连轧 数值模拟

领　　域： [金属学及工艺]