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基于ABAQUS仿真平台,针对国内某四辊CVC板带冷轧机,建立钛带冷轧过程的弹塑性变形有限元模型,数值模拟研究钛带冷轧过程塑性变形和轧机各项板形控制技术的板形调控功效。仿真结果表明,相同厚度的钛带经历轧制塑性变形后,实际压下量和纵向延伸量随着辊缝开度和后张力的增加而减小,又随着前张力和轧制区摩擦因数的增加而增加。四辊CVC轧机对于钛带依然具有较强的板形调控能力,冷轧过程钛带的二次凸度和边降随着弯辊力和支持辊凸度的增加而减小,又随着工作辊窜辊量的增加而增加,而四次凸度随着支持辊凸度和工作辊窜辊量的增加而增加。
Based on the ABAQUS simulation platform, a finite element model of the cold-rolling process of titanium strip was established for a four-roll CVC plate cold rolling mill in China. The numerical simulation was used to study the plastic deformation of the strip during the cold rolling and the various strip shape control techniques Shape control effect. The simulation results show that the actual reduction and longitudinal extension decrease with the increase of roll gap and back tension when the same thickness of titanium strip undergoes rolling plastic deformation. With the increase of the former tension and the friction coefficient Increase and increase. The four-roll CVC rolling mill still has strong shape control ability for the titanium strip. The secondary crown and edge drop of the titanium strip in the cold rolling process decrease with the increase of the bending force and the supporting roll crown, The amount of roller shift increases with the increase of the fourth degree of convexity with the support roller crown and the amount of work roll channeling increases.