Friction model selection in FEM simulations of aluminium extrusion
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Visioplastic analyses with the rod technique were performed in the extrusion of AA6060 alloy at different processing conditions in order to measure the friction effect at the billet-container interface. During the trials an accurate monitoring of the relevant process variables such as punch force and temperatures was performed in order to validate FEM simulations. Different FE codes were used to carry out the simulations: Deform, HyperXtrude, and Superform. A particular attention was given on evaluating the several coefficients of the available friction models by comparing the FEM results with experimental results.
[1] A. Tekkaya,et al. Numerical Optimization of Bearing Length in Composite Extrusion Processes , 2008 .
[2] A. Jackson,et al. Constitutive equations for use in prediction of flow stress during extrusion of aluminium alloys , 1997 .
[3] I. Flitta,et al. Nature of friction in extrusion process and its effect on material flow , 2003 .