宽厚不锈钢复合板轧制力计算与参数影响分析

Rolling force calculation and parameters influence analysis of wide stainless steel clad plate

对宽厚不锈钢复合板层间真空热轧制变形过程进行受力分析,将热轧变形区分成I、II两个区间,运用主应力法建立各个区间的力平衡方程,根据边界条件和屈服准则求出各变形区的长度和各变形区所受压力,建立轧制力计算数学模型,在此基础上分析轧制工艺参数对宽厚不锈钢复合板轧制区间内不同应力分布的影响规律。将实际参数代入轧制模型计算公式,应用Matlab编程求得理论计算值,并与实测值进行比较。研究结果表明:轧制力模型可用于预测轧制力的大小,满足工程要求,轧制复合过程研究有助于优化成形工艺、预测产品性能,为今后此类材料的研究开发提供了参考依据。

Force analysis of interlaminar vacuum hot rolling deformation process for wide stainless steel clad plate was carried out. The hot rolling deformation area was divided into two intervals marked as I and II,and the force equilibrium equations of each interval were established employing the principal stress method. The length and resultant stress of each deformation zone were obtained according to the boundary conditions and yield criterion,and the mathematical model for calculation of rolling force is derived. Based on this model,the influence of rolling process parameters on different stress distribution in wide stainless clad plate rolling intervals was analyzed. Substituting the actual parameters into the calcula-tion formula of rolling model,the calculated values were obtained by application of Matlab programming and compared with the measured values. The results indicate that the rolling force model can predict the rolling force accurately and meet the engineering requirements. The study on clad rolling process contributes to the optimization of forming process and product performance prediction,which can provide reference basis for future research and development of this kind of ma-terials.