多道次立-平辊轧制轧件角部金属流动状态有限元模拟  

FEM Analysis to the Slab Corner Metal Flow Condition During Multi-Pass V-H Rolling Process

作　　者：喻海良[1] 刘相华[1] 李长生[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2005年第10期982-985,共4页Journal of Northeastern University(Natural Science)

基　　金：国家重大基础研究发展规划项目(G2000067208-4)

摘　　要：利用显式动力学有限元方法和几何模型更新方法对平立辊、内导角半径50 mm孔型辊8、0 mm孔型辊三种情况下,多道次立-平辊轧制过程进行了模拟,分析了三种立辊情况下,轧件角部金属的流动情况.得出在既定轧制规程下,采用平立辊时,轧件角部金属被翻边至轧件水平面上;采用孔型立辊时,轧件角部金属保留在轧件水平面与侧面的交线上.The multi-pass vertical-horizontal （V-H） rolling process using plain-barreled edging roll and two grooved edging rolls with inward chamfer radius R = 50 mm and R = 80 mm was modeled by way of explicit dynamic FEM and updated geometric, and the slab corner metal flow under the conditions as above was analyzed. With the specified rolling schedule, it was found that the slab corner metal is curling and overturning onto the slab top surface when using the plain-barreled edging roll, and the slab corner metal is kept onto the line intersecting the top surface with side surface of the slab when using grooved edging roll.

关 键 词：立-平辊轧制过程 多道次 几何模型更新方法 有限元 

分 类 号：TG335.5[金属学及工艺—金属压力加工]