Title: Multi-stage Finite Element Simulation of Porthole Die Extrusion Process
Abstract:A new simulation system was developed by multi-stage mesh generation and step size dynamic adjustment based on rigid-viscoplastic finite element method. The methods of element volume compensation were...A new simulation system was developed by multi-stage mesh generation and step size dynamic adjustment based on rigid-viscoplastic finite element method. The methods of element volume compensation were proposed. The porthole die extrusion of complex thin-walled aluminum Harmonica-shaped tube was successfully simulated in the new simulation system on the platform of Deform-3D. The deformation behavior of metals in harmonica-shaped tube extrusion process was analyzed. The distribution of velocity field, stress field, effective strain field and temperature field during the extrusion process were discussed. The results of numerical simulation are in good match with the theoretical analysis. The results indicate that simulation time could be shortened greatly with new simulation system on the premise of guaranteeing result precision. The multi-stage FEM is an effective numerical simulation method for complex thin-walled aluminum extrusion process.Read More
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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