High-power laser welding of thick steel-aluminum dissimilar joints

verfasst von
Rabi Lahdo, André Springer, Ronny Pfeifer, Stefan Kaierle, Ludger Overmeyer
Abstract

According to the Intergovernmental Panel on Climate Change (IPCC), a worldwide reduction of CO2-emissions is indispensable to avoid global warming. Besides the automotive sector, lightweight construction is also of high interest for the maritime industry in order to minimize CO2-emissions. Using aluminum, the weight of ships can be reduced, ensuring lower fuel consumption. Therefore, hybrid joints of steel and aluminum are of great interest to the maritime industry. In order to provide an efficient lap joining process, high-power laser welding of thick steel plates (S355, t = 5 mm) and aluminum plates (EN AW-6082, t = 8 mm) is investigated. As the weld seam quality greatly depends on the amount of intermetallic phases within the joint, optimized process parameters and control are crucial. Using high-power laser welding, a tensile strength of 10 kN was achieved. Based on metallographic analysis, hardness tests, and tensile tests the potential of this joining method is presented.

Externe Organisation(en)
Laser Zentrum Hannover e.V. (LZH)
Typ
Konferenzaufsatz in Fachzeitschrift
Journal
Physics Procedia
Band
83
Seiten
396-405
Anzahl der Seiten
10
ISSN
1875-3884
Publikationsdatum
16.09.2016
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Physik und Astronomie
Ziele für nachhaltige Entwicklung
SDG 13 – Klimaschutzmaßnahmen
Elektronische Version(en)
https://doi.org/10.1016/j.phpro.2016.08.041 (Zugang: Offen)