Three-dimensional rigid-plastic finite element simulation for the two-roll cross-wedge rolling process

摘要

In this paper, the process of cross-wedge rolling (CWR) has been simulated and analyzed by the 3D rigid-plastic finite element method. Considering the characteristic of CWR, the static implicit FEM program DEFORM-3D is selected. To simulate all farming stages in the CWR process, dynamic adaptive remeshing technology for tetrahedral solid elements was applied. The stress distributions in the cross-section of the forming workpiece are analyzed to interpret fracture or rarefaction at the center of workpiece. The authors have also analyzed the time-torque curve and the laws of load changing.