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Simulation Aided Design of Porthole Dies for Magnesium Alloys Extrusion

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Simulation Aided Design of Porthole Dies for Magnesium Alloys

Tommaso Pinter, Almax Mori S.r.l., Mori - Italy
Yoram Rami, Alubin, Kiryat Bialik - Israel
Tuvia Kornfeld, N.T.K Ltd., Shechanya - Israel
Antonio Segatori, Lorenzo Donati, and Luca Tomesani ,
University of Bologna, Bologna – Italy

Track: EXTRUSION/DIE THEORETICAL - Composites and Nonconventional Materials

ABSTRACT—The use and adoption of magnesium extruded profiles in structural
applications is limited because magnesium extrusion technology is at its conception. Once
extruded hollow sections are available at a reasonable cost, a tremendous increase of market
demand is expected due to the low weight of magnesium alloys in comparison with aluminum
based ones. The press productivity represents a key factor in this scope. Also the die, due to
the strong influence of strain and temperature on extrudability, will play a basic role in
achieving the required ram speed. This paper present a new approach for designing extrusion
dies specifically for magnesium alloys AZ31 and ZM21 by means of FEM simulation. The
effectiveness of the new design has been validated by extruding a hollow profile using an
industrial press with data logging.

© 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.