3-D Thermo-mechanical Coupled Elastoplastic FEM Analysis for Hot Continuous Rolling Process of Wire (ID: 3-055)

摘要

Rolling is a typical large deformation process and its mechanism is very complex, which includes material, geometry and boundary condition non-linearity. It is impossible to obtain theory analytical results by trying to roll or physical experiment, which induces many problems such as high cost, waste time and venture. With the rapid advancement of the computing technology, FEM is regarded as the best method, which can account for the large plastic deformation, thermo-mechanical coupling and complex boundary conditions of.roller and workpiece interactions during the rolling process. The six-pass hot continuous rolling process of high-speed round bar has been simulated accurately for the pre-finishing rolling region. The metal fluxion rule and the deformation field are obtained. Strain, temperature, rolling force and torque also have been simulated and discussed. The results of simulation are useful for practical manufacture and the optimization of process-parameters, which reduce wear of roller's surfaces and improve life of use.