Abstract
A body fitted based finite volume method (FVM) model of aluminum extrusion processes was established in this paper. The basic theories and rigid-plastic flow theories of this model were researched and built. Body fitted grids were used to match complex geometric boundaries and local refinement of grids was also realized. Plastic shear friction model was applied on body fitted grids. A typical then walled profile extrusion process was simulated using the program developed in this paper. The simulation results were also compared with that simulated by FEM software Deform in the same process, material and die conditions. The feasibility and efficiency of the mathematic model built in this paper was demonstrated by the simulation results and the comparison.
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