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Title: Laser welding and its implementation in the assembly of battery packs in aviation

Authors: Gábor Horváth; Andor Körmöczi; Tamás Szörényi; Zsolt Geretovszky

Addresses: Department of Optics and Quantum Electronics, University of Szeged, H-6720 Szeged, Dóm tér 9, Hungary ' Department of Optics and Quantum Electronics, University of Szeged, H-6720 Szeged, Dóm tér 9, Hungary ' Department of Optics and Quantum Electronics, University of Szeged, H-6720 Szeged, Dóm tér 9, Hungary ' Department of Optics and Quantum Electronics, University of Szeged, H-6720 Szeged, Dóm tér 9, Hungary

Abstract: Following an overview of conventional bonding techniques used for the assembly of battery packs of modern hybrid vehicles special attention will be paid to laser keyhole welding. The unique challenges of aviatic applications, especially joining large number of batteries in a highly reproducible manner are pinpointed. The effect of contact area on the electrical and mechanical properties of laser welded joints is investigated on a DC01 steel model structure. The results are also discussed in terms of laser scanning speed. In the optimal process parameter range joints exhibiting electrical and mechanical properties appealing for assembling hybrid aircraft battery packs can be produced with high reproducibility.

Keywords: electric and hybrid aircraft; battery assembly; laser welding.

DOI: 10.1504/IJSA.2020.108094

International Journal of Sustainable Aviation, 2020 Vol.6 No.1, pp.51 - 65

Received: 09 Aug 2019
Accepted: 07 Feb 2020

Published online: 26 Jun 2020 *

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