Preliminary study of the mechanical characteristics implementation of friction stir welded AA2024 joints by adding pure copper

Preliminary study of the mechanical characteristics implementation of friction stir welded AA2024 joints by adding pure copper

Sara Bocchi, Gianluca D’Urso, Claudio Giardini

Abstract. In the present paper, the mechanical properties of a AA2024 welded by Friction Stir Welding (FSW) were examined, both homogeneously and using a commercial pure copper sheet positioned between the edges to be welded in two configurations, T and C. The temperature trends reached during the FSW process were extrapolated through the development of a simulative model, to select the best combination of parameters to use in the experimental phase of the campaign. After that, the FSWed homogeneous and heterogeneous joints were executed and analysed. From the mechanical point of view, Rockwell B hardness tests and tensile tests were performed. It was possible to evidence a good relationship between the hardness distribution and the presence of the copper, especially at the nugget. On the contrary, the tensile tests executed orthogonally to the welding direction, showed a reduction of the tensile strength and of the real elongation percentage in the aluminium-copper heterogeneous FSWed joints.

Keywords
Friction Stir Welding, Aluminium, Solid State Diffusivity

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Sara Bocchi, Gianluca D’Urso, Claudio Giardini, Preliminary study of the mechanical characteristics implementation of friction stir welded AA2024 joints by adding pure copper, Materials Research Proceedings, Vol. 25, pp 213-220, 2023

DOI: https://doi.org/10.21741/9781644902417-27

The article was published as article 27 of the book Sheet Metal 2023

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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