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Electrode wear investigation of aluminium spot welding by motion overlay

The amount of aluminium sheets in future body-in-white concepts is still on the rise. There is a need for optimizing the joining techniques, caused by the different characteristics compared to the established steel components. Especially the electrode life for resistance spot welding as a reliable and established process needs to be improved. One reason for the short electrode life when welding aluminium is the insulating effect of the aluminium oxide layer. One possibility to reduce the electrode wear is the mechanical destruction of the oxide layer before the welding. This paper describes the influence of a translational and rotational electrode movement on the electrode wear. The oxide layer destruction is detected by resistance measurement. It could be shown that the destruction of the oxide layer already occurs at low movements. However, a homogeneous, large-area destruction is necessary for a wear reduction.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:89915
Date26 February 2024
CreatorsHeilmann, Stefan, Baumgarten, Martin, Koal, Johannes, Zschetzsche, Jörg, Füssel, Uwe
PublisherSpringer
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text
Rightsinfo:eu-repo/semantics/openAccess
Relation1433-3015, 10.1007/s00170-022-10157-8, info:eu-repo/grantAgreement/Deutsche Forschungsgemeinschaft/Entwicklung einer Methodik zur simulationsgestützten Analyse von Widerstandspunktschweißprozessen mit Bewegungsüberlagerung am Beispiel von Aluminiumwerkstoffen/266896522//Simulationbased analysis of resistance welding processes with motion overlay

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