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Prediction of Flow Stress and Recrystallization by the Finite Element Method

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Prediction of Flow Stress and Recrystallization by the Finite Element Method during the Hot Extrusion of Aluminum Alloys

Xianjian Duan, Terry Sheppard, and Xavier Velay, Bournemouth University

Track: EXTRUSION PROCESS - Peripheral Coarse Grain

ABSTRACT --- The present paper comprehensively reviews the latest work on the
modeling and simulation of hot extrusion processes by using two commercial finite
element codes: FORGE2® and FORGE3®. The various aspects related to the
aluminum alloy extrusion process are discussed: the load/stroke curve under different
forming conditions, microstructural evolution and recrystallization. The adopted
methodology is to integrate the various models (such as the recrystallization model,
fracture criteria etc.) into the commercial codes through user routines. The alloys
studied include AA2014, AA2024 and AA6063. The shapes of the extruded products
include the rod and the T-shape. All analysis results are compared with the
experimental observations taken from the literature.

© Extrusion Technology for Aluminum Profiles Foundation (ET Foundation). All rights reserved. No part of The Proceedings may be reproduced in any form without the express written permission of the ET Foundation.

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