Qualitative and quantitative interdependence of mechanical properties of industrially extruded AA6063 alloy on process parameters and profile characteristics
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 30 September 2022
Issue publication date: 14 November 2022
Abstract
Purpose
This study aims to investigate and model interrelationships between process parameters, geometrical profile characteristics and mechanical properties of industrially extruded aluminum alloys.
Design/methodology/approach
Statistical design of experiments (DOE) was applied to investigate and model the effects of eight factors including extrusion ratio, stem speed, billet-preheat temperature, number of die cavities, quenching media (water/air), time and temperature of artificial aging treatment and profile nominal thickness on four mechanical properties (yield strength, ultimate tensile strength, percent elongation and hardness). Experiments were carried out at an actual extrusion plant using 8-in. diameter billets on an extrusion press with 2,200 ton capacity.
Findings
Main factors and factor interactions controlling mechanical properties were identified and discussed qualitatively. Quantitative models with high prediction accuracy (in excess of 95%) were also obtained and discussed.
Practical implications
The obtained results are believed to be of great importance to researchers and industrial practitioners in the aluminum extrusion industry.
Originality/value
All practical and relevant parameters have been used to model all important mechanical properties in a collective manner in one study and within actual industrial setup. This is in contrast to all previous studies where either a partial set of parameters and/or mechanical properties are discussed and mostly under limited laboratory setup.
Keywords
Acknowledgements
The authors would like to thank The Modern Aluminum Extrusion Company (MODAL), Al-Qastal-Jordan, for providing the materials and experimental setup for this project.
Citation
Abdul Jawwad, A.K., Al-Bashir, A., Saleem, M. and Hasanain, B. (2022), "Qualitative and quantitative interdependence of mechanical properties of industrially extruded AA6063 alloy on process parameters and profile characteristics", Multidiscipline Modeling in Materials and Structures, Vol. 18 No. 6, pp. 968-996. https://doi.org/10.1108/MMMS-06-2022-0111
Publisher
:Emerald Publishing Limited
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