Velocity Field in Direct, Indirect and Friction Assisted Extrusion of Al

Abstract:

This study investigates the velocity fields that are descriptive for the forward, backward and friction assisted extrusion of axisymmetric rods. The Avitzur theory was used to calculate the velocity field and strain rate in extrusion of Al alloys. Several simulations have also been performed by using finite element analysis (FEA) with DEFORM 2D, in order to find the admissible velocity field for different conditions of friction including high and low friction. The results from FEA and theory of axisymmetric extrusion are compared to see if there is good agreement. The correlation between the data obtained by theory and FEA is discussed.

• Periodical: Key Engineering Materials (Volumes 554-557)
• Pages: 776-786
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.554-557.776
• Online since: June 2013
• Authors: Sepinood Torabzadeh Khorasani, Henry Valberg

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