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Erschienen in: Journal of Materials Engineering and Performance 11/2014

01.11.2014

Preliminary Study on the Formability of a Laser-Welded Superplastic Aluminum Alloy

verfasst von: D. Sorgente, O. Corizzo, M. Brandizzi, L. Tricarico

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 11/2014

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Abstract

In this work, the effect of the laser-material interaction on the formability of a superplastic aluminum alloy was investigated. In applications such as Tailor-Welded Blanks and in the manufacturing of very large components with a complex shape, laser welding combined with superplastic forming may be a very fitting industrial tool. Bead on plate tests were carried out in order to simulate the laser-welding process and then, free inflation tests were performed to evaluate the compatibility of these two processing techniques. The Al-Mg alloy used in this work has a very small grain size which ensures the superplastic behavior. With the aim of preserving this peculiarity, the following aspects on the formability were investigated: (i) the surface condition of the bead before the forming test (with and without the removal of the excess of metal); (ii) the effect of the travel speed of the laser source on the mean grain size; (iii) the introduction of a refiner, commonly used in aluminum casts, in the molten pool in order to further reduce the mean grain size.
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Metadaten
Titel
Preliminary Study on the Formability of a Laser-Welded Superplastic Aluminum Alloy
verfasst von
D. Sorgente
O. Corizzo
M. Brandizzi
L. Tricarico
Publikationsdatum
01.11.2014
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 11/2014
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-014-1206-2

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