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Main Title: Extrusion of magnesium alloy hollow profiles with axial variable wall thickness
Author(s): Negendank, Maik
Sanabria, Vidal
Müller, Sören
Reimers, Walter
Type: Article
Language Code: en
Abstract: Industrially extruded profiles are characterized by a constant cross section along the length since rigid dies are applied in the process. However, if it would be possible to extrude profiles with cross sections that can be locally adapted (tailored) to the acting forces or stresses this would mean a significant potential for weight and material savings. Hence, in this study the extrusion of magnesium hollow profiles with axial variable wall thickness was investigated. Therefore, a newly developed porthole die was applied and extrusion trials conducted in order to show the feasibility of producing load adapted magnesium hollow profiles with axially variable wall thickness. Billets of magnesium alloy AZ31 were extruded and the required extrusion force was measured vs. process time. After the extrusion tryouts the manufactured hollow profile sections were measured with respect to the obtained wall thickness, inner and outer diameter of the thin-walled and the thick-walled sections, and in the wall thickness transition areas. The feasibility of manufacturing AZ31 hollow profiles with axially variable wall thickness was proven successfully. A maximal wall thickness variation of Δt=1.0 mm was achieved.
Issue Date: 2-Jul-2019
Date Available: 19-May-2020
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): alloys
wall thickness
Journal Title: AIP Conference Proceedings
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 2113
Issue: 1
Article Number: 030002
Publisher DOI: 10.1063/1.5112530
EISSN: 1551-7616
ISSN: 0094-243X
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in AIP Conference Proceedings 2113, 030002 (2019) and may be found at
Appears in Collections:FG Metallische Werkstoffe » Publications

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