Deformation Analysis in Deformation Zone during Asymmetric Rolling with Different Roller Speed Ratio

The 3D elastic-plastic thermo-mechanical coupled FEM for large strain was used to analyze metal deformation in the deformation zone for asymmetric rolling with different roller speed ratio.Then the distribution rules of stress,strain and strain energy density in different roller speed ratio were gained.The results showed that the additional shearing strain,which is different from the normal compressive deformation,was generated during asymmetric rolling.This additional shearing strain is beneficial to grain refinement.