扁钢精轧过程的数值模拟与分析研究

为了建设资源节约型社会,金属轧制技术作为一种少切削或无切削加工的高效、节约的生产手段是值得提倡的。针对轧件精度的提高等问题,以轧制理论为基础,基于有限元软件Deform-3D建立了扁钢轧制件的有限元模型,采用适当的加载和约束条件,对单、双道次轧制成功地进行了仿真模拟,详细分析了厚度、轧辊转速、轧辊直径、温度等因素对轧件精度和功率的影响。并且针对单、双道次轧制仿真进行了模拟,分析了轧件等效应变和等效应力情况。研究结果表明:经过双道次轧制的轧件精度偏差在0.005 4~0.107 2之间,对于提高轧件精度起着至关重要的作用,有效地验证了有限元模型的合理性,分析结果对现场生产有着重要的指导意义。

Numerical simulation and analysis of flat finishing rolling process

In order to building a resource-saving society,it is worth promoting that metal rolling technology,as a efficient and economical means of production,is little cutting or no machining.Aiming at improving the accuracy of rolling,based on the theory of the rolling and the general finite element analysis software Deform-3D,the finite element model was established for a fiat rolled pieces.A successful simulation was done for double-pass rolling,with using appropriate loading and constraints.All kinds of rolling factors such as thickness of work piece,speed of roll,diameter of roll,and temperature were analyzed by the effect on the rolling precision and power.And a rolling was carried out on a single and double pass rolling simulation,and the equivalent strain and equivalent stress situations of the rdling was analyzed.The results indicate that the accuracy of double-pass rolling is between 0.005 4 and 0.107 2,It is played a vital role in improving the accuracy of rolling,the rationality of the finite element model is validated,it is an important directive significance for manufacture.