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HyperXtrude/Process – Extrusion Process Optimization Software

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HyperXtrude/Process – Extrusion Process Optimization Software

Mahender P. Reddy, Altair Engineering Inc.
Henry E. Bertolini and Bob W Biel, General Extrusions, Inc.

Track: EXTRUSION PROCESS - Extrusion Process

ABSTRACT --- A numerical model to determine optimal process conditions for
extruding aluminum profiles is presented here. This algorithm is based on the first
principles that govern material deformation during extrusion, and is used to compute
the extrusion limit diagram. Process parameters used to compute the extrusion limit
diagram are: press capacity, container diameter, temperature and strain rate
dependent alloy properties, die shape, and profile geometry. The extrusion limit
diagram is used to determine the optimal extrusion speed, billet preheat and taper. The
main advantage of the approach described in this paper is that it removes guesswork
from estimation of extrusion speeds. Accuracy of the method is established comparing
the predictions with actual press data.

© 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.