【摘要】 轧制过程是一个非常复杂的大变形过程,难以用准确的数学模型来描述.有限元法不但能解决复杂的非线性问题,而且克服了传统的物理模拟和实验研究成本高且效率低的缺点.通过Gleeble-1500热模拟机进行热压缩实验构建3104铝合金的本构方程,并嵌入到铝板带热连轧三维MSC.Marc有限元模型中.有限元分析热连轧过程温度场和轧制力分析结果表明:全流程温度变化主要发生在第1道次;模拟温度与实测温度接近;轧制力误差在5.0%范围内.该模型能够在实际生产中工艺优化起到重要指导作用.更多还原

【Abstract】 Because of the complexity during hot continuous rollingprocess,it is difficult to describe with accurate mathematical model.However,Finite Element Method(FEM)can not only solve the complicated nonlinear problem,but also overcome the shortcomings of the high cost and low efficiency by the traditional physics simulation and experimental research.The constitutive equation of 3104 aluminum alloy is developed by hot compressing test on Gleeble-1500 simulator,and embeded in 3Dfinite element model of aluminum hot continuous rolling strips by software MSC.Marc.Analysis on temperature filed and rolling force during hot rolling process and the result shows that temperature drop is the largest in the first pass,the value of temperature simulated is closed to the measured data,and the difference between simulated and measured rolling forces is less than 5%.The finite element model can provide the important guidance for the optimization of technological parameters.更多还原