3D Rigid-Plastic Finite Element Analysis for Skew Rolling Process of the Stepped Part

作     者：Gang FANG Pan ZENG 

作者机构：Department of Mechanical Engineering Tsinghua University Beijing 100084 China Department of Mechanical Engineering Tsinghua University Beijing 100084 China 

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：38-40页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：The research is supported by the National Natural Science Foundation of China ((No. 50205013 and No. 50175060). Special thanks are expressed to the Mr. Guoji Li from Science Forming Technology Corp. (SFTC) for his assistance and advice on the simulation work of.this paper 

主　　题：FEM, Skew rolling, Stepped part, Spinning part, Fracture 

摘      要：Based on rigid-plastic finite element method, a skew rolling process of stepped part is simulated. Considering nodesaving and effective remeshing, the tetrahedron solid elements are used to discrete workpiece. The workpiece material adopts rigid-plastic model, where the flow stress is function of effective strain, effective strain rate and *** thermomechanical coupling is considered in the simulation. To model the spinning workpiece undergoing plastic deformation, a novel solution is presented and applied in this paper. The stress state in the workpiece and forming characteristic of skew rolling are analyzed. The forming load, including roller torque and forces in three directions are predicted. The above analyses are helpful to understanding of forming mechanisms and improving of process and die design.