Abstract:FEM simulation and analysis of hot rolling process were carried out in order to solve surface defect problem at rolled piece corner. Deformation of rolled piece in three flat rolling passes and two edge rolling passes, especially the turning phenomenon of elements from corner to top surface, were analyzed. The results show that the spread and side turn of rolled piece happens mainly in flat rolling passes, while the corner elements fall under tension state, which may lead to defects in all probability. On the contrary, the corner elements in edge rolling passes are in press condition, which is benefit to repair little defects. So it may be anther good method of optimize reduction schedule of edge rolling passes to amend rolling defects. Corresponding location of meshes in rolling ingot and rolled piece can be gained definitely from the model results, which is significant to analyze and reduce surface defects of rolled products.
陈韧,刘立文,李梦炜,姚祥东,干勇. 粗轧板坯侧翻变形的数值模拟[J]. 中国冶金, 2007, 17(8): 29-29.
CHEN Ren,LIU Liwen,LI Mengwei,YAO Xiangdong,GAN Yong. Simulation and Analysis of Side Turn Deformation of Rough Rolling Plate. China Metallurgy, 2007, 17(8): 29-29.