THE INFLUENCE OF EXTRUSION RATIO ON THE STRENGTH OF HOT EXTRUDED ALUMINUM ALLOY CHIPS

1 Noga Piotr
Co-authors:
1 Wiewiora Jakub 1 Wzorek Lukasz
Institution:
1 Faculty of Non-Ferrous Metals, AGH - University of Science and Technology, Cracow, Poland, EU
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1600-1604
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
308 views / 142 downloads
Abstract

Hot-extrusion of the chips and other highly fragmented materials is a very convenient way for aluminum alloys scarp processing. It is possible to achieve ready or semi-finished products in one step of material forming - directly from the chips to the bulk material. The mechanical properties of such processed material are affected by various extrusion conditions: temperature, extrusion speed and cross-section reduction ratio ". The variation of cross-section reduction ratio has an effect on chips bonding quality, which in turn results in different mechanical properties. The objective of the present study is to analyze mechanical and structural features of 6060 and AlSi11 aluminum alloys after plastic consolidation by hot extrusion with different cross-section reduction ratio in the range of 7 to 45. Aluminum alloy in the form of chips, were preliminarily cold compacted to produce cylindrical billets. The as-compressed billets were then hot extruded at 450 °C. The samples cut from as extruded rods were subjected to tensile test and structural SEM observations. Based on obtained results minimum extrusion ratio required for sound bonding of chips was established.

Keywords: aluminum chips, plastic consolidation, recycling, aluminum alloys

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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