Abstract:Due to the inefficiency and high cost of traditional large plastic deformation on the preparation of ultrafine crystal material
a new kinds of compound deformation combined forward extrusion and change channel angular extrusion (FECCAE) mold was designed based on the change channal angular extrusion and forward extrusion(FE).Taking the AZ31 magnesium alloy as the research object
the compound deformation was simulated by Deform 3D software.The numerical simulation results shows that the accumulated deformation of FECCAE better than the sum of FE and CCAE,and the grain refining significantly,which decreased from 13.5μm to 2.66μm.