H型钢万能轧制宽展有限元分析

FEM ANALYSIS OF FLANGE SPREAD DURI NG UNIVERSAL ROLLING OF H-BEAM

应用有限元分析软件MSC·SUPERFORM2004对H型钢万能轧制进行了模拟,着重讨论了轧件在万能轧制的不同阶段,宽展在孔型中的变化规律,由模拟结果可知万能孔型中轧件翼缘的端部不接触轧辊;变形主要靠变形渗透,变形量很小;且变形渗透随道次的增加而明显。轧边机孔型中,翼缘的端部也基本不接触轧辊,只是在最后一两道次才对翼缘端部进行加工。通过实际生产验证,在制定万能轧制规程时,通过对翼缘压下量的合理设定可以对翼缘端部的宽展进行有效的控制。

With the aid of finite elemeht analysis software, MSC;SuperForm2004, universal rolling of piling H-beam is simulated; flange spread during the rolling .process is discussed mainly. It indicates that in the universal groove, the top of the flange doesn＇t touch the roll;the deformation which relies on deformation extension of the flange is very little,and the extension becomes more intensive during the rolling process. In the edge roll groove, the top of flange doesn＇t touch the roll either, the top of flange is roiled by the edge roll only in the last one or two passes. The spread of flange can be controlled effectively in actual manufacture by setting a reasonable flange reduction in rolling schedule.