Three-Dimensional Thermo-mechanical Coupled FEM Simulation for Hot Continuous Rolling of Large-Diameter Mandrel Bar

作     者：Huiping HONG Yonglin KANG Changtao FENG Xiqiang CHEN 

作者机构：School of Materials Science and Engineering University of Sicence and Technology Beijing Beijing 100083 China Baoshan Iron and Stddl Co.Ltd.Shanghai 201900China School of Materials Science and Engineering University of Sicence and Technology Beijing Beijing 100083 China Baoshan Iron and Stddl Co.Ltd.Shanghai 201900China School of Materials Science and Engineering University of Sicence and Technology Beijing Beijing 100083 China Baoshan Iron and Stddl Co.Ltd.Shanghai 201900China School of Materials Science and Engineering University of Sicence and Technology Beijing Beijing 100083 China Baoshan Iron and Stddl Co.Ltd.Shanghai 201900China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2003年第19卷第Z1期

页      面：228-230页

核心收录：

学科分类：080503[工学-材料加工工程] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

主　　题：Mandrel, Round bar, Hot continuous rolling, Thermomechanical coupled analysis,Finite element method. 

摘      要：Based on the important boundary conditions of rolling simulation including friction, heat conduction and interactionsof the workpiece and rolls, the hot continuous rolling processes of large-diameter mandrel round bar (200 mm indiameter) in 6VH-stand hot tandem mill are successfully simulated by three-dimensional coupled thermomechanicalelastoplastic finite element method (FEM). The distributions of stress, strain, temperature and the rolling force andtorque for the two-pass and four-pass continuous rolling are calculated respectively. Thus, the two and four-passroll schedules are verified, respectively. The simulation results show that it is safe to produce 200 mm round barby the two-pass (oval pass and round pass) continuous rolling on the existing equipment compared to the four-passcontinuous rolling. There are concave surfaces and increased widths occurring at the end of rolled billet due touneven deformations between the outside and inside of the workpiece as well as the free spreading close to the rollgap of the final pass.