Complex deformation routes for direct recycling aluminium alloy scrap via industrial hot extrusion

This paper presents the final results of an industrial project, aiming for direct hot extrusion of wrought aluminium alloy scrap at an industrial scale. Two types of complex deformation/extrusion routes were tested for the production of the same profile, starting from AA6060 scrap in form of machini...

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Bibliographic Details
Main Authors: Paraskevas, Dimos, Kellens, Karel, Kampen, Carlos, Mohammadi, Amirahmad, Duflou, Joost R.
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:This paper presents the final results of an industrial project, aiming for direct hot extrusion of wrought aluminium alloy scrap at an industrial scale. Two types of complex deformation/extrusion routes were tested for the production of the same profile, starting from AA6060 scrap in form of machining chips. More specifically scrap-based billets were extruded through: a 2-porthole and a 4-porthole die-set, modified for enhanced scrap consolidation and grain refinement. For comparison reasons, cast billets of the same alloy were extruded through the modified 2-porthole die set. The tensile testing results as well as microstructural investigations show that the 4-porthole extrusion route further improves scrap consolidation compared to the 2-porthole die output. The successful implementation of solid state recycling, directly at industrial level, indicates the technological readiness level of this research.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5034852