Die Optimization of Aluminum Extrusion Process by FVM Numerical Simulation

Abstract

The mathematic model of aluminum extrusion processes using finite volume method (FVM) was established by FVM in this paper. Basic theory and key technologies of this model were researched and built. Non-orthogonal blocked structured girds were used to fit complex geometries, the governing equations were directly discretized on boundary-fitted non-orthogonal grids. Volume of Fluid (VOF) scheme was used to capture the free surface of the deforming material. A simulation program AE-FVM was developed. A typical thin-walled aluminum profile extrusion process was simulated and the extrusion die was optimized by using AE-FVM and FVM software MSC/SuperForge respectively, and the comparisons of the results showed that the mathematic model established in this paper was feasible and exact.