Reference : Resistance measurement of dissimilar Al/Cu laser welds
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Resistance measurement of dissimilar Al/Cu laser welds
[lb] Widerstandsmo├čen vun artongleichen laser-schweesverbindungen Al/Cu
Schmalen, Pascal Guy mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Proceedings of LPM2017 - the 18th International Symposium on Laser Precision Microfabrication
[en] Laser ; welding ; dissimilar ; Al ; Cu ; IMC
[en] Aluminum and Copper were joined using the laser-based braze-welding process. By avoiding the intermixture of both conductive materials, the formation of brittle intermetallic compounds is strongly reduced. This results in a tough, ductile connection with reduced electric resistance. This paper de-scribes a method, which is based on the 4-wire method, to measure the resistance of the weld seam. The arrangement of the conductive electrodes directly on top and bottom of the weld seam signifi-cantly increases the accuracy of the measured resistances, thus offers a direct estimation of the inter-metallic layer thickness. The electric measuring of the layer thickness is a non-destructive method, which assists in the reduction of the post-process effort (cross sections, pull tests, hardness measure-ments) and decreases the lead-time by reducing the time needed for the identification of suitable laser process parameters.
FnR ; FNR10155468 > Pascal Guy Schmalen > CoLaWeDi > Closed-Loop Control Of The Laser-Braze Welding Process Of Dissimilar Materials > 01/09/2015 > 14/03/2018 > 2015

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