A UBET-Simulation Meant for Basic Understanding of the Extrusion of Aluminum Profiles

[+] Author and Article Information
U. Ståhlberg, J. Hou

Division of Materials Forming, Royal Institute of Technology, 100 44 Stockholm, Sweden

J. Eng. Ind 117(4), 485-493 (Nov 01, 1995) (9 pages) doi:10.1115/1.2803525 History: Received June 01, 1993; Revised May 01, 1994; Online January 17, 2008


A plane strain UBET-model, meant for deeper understanding of the material flow in the extrusion of complex shaped aluminum profiles is presented. In order to get the desired straight shape of the extrudate, every part of its cross-section must exit the die with the same velocity. One intention of the present work is to imitate this problem and to analyze it in a simplified way. This has been done by studying the extrusion through a two-hole die face. The flow is balanced by determining the optimum lengths of the bearing lands, i.e., those lengths which result in equal exit velocities of the extrudates. Furthermore, the material flow, as influenced by the position of the die openings along the die face, has been investigated.

Copyright © 1995 by The American Society of Mechanical Engineers
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