Laser Welding of dissimilar cell tabs: Extracting physics semantics from infrared (IR) emissions as process monitoring data

Laser Welding of dissimilar & non-ferrous alloys for joining powertrain components in e-vehicles has been well-established in the automotive industry. Despite the advantages that provides compared to other joining methods, the use of Laser welding cannot eliminate the likelihood of having defect...

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Bibliographic Details
Published in:Procedia CIRP 2024, Vol.121, p.222-227
Main Authors: Sabatakakis, K., Bourlesas, N., Bikas, H., Papacharalampopoulos, A., Stavropoulos, P.
Format: Article
Language:English
Subjects:
Electromobility
Explainable Feature Engineering
Infrared Monitoring
Laser Welding
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Summary:Laser Welding of dissimilar & non-ferrous alloys for joining powertrain components in e-vehicles has been well-established in the automotive industry. Despite the advantages that provides compared to other joining methods, the use of Laser welding cannot eliminate the likelihood of having defective and out-of-spec products. To this end, online quality assessment has been widely adopted for welding applications, but it is implemented based on model performance criteria. In this study, the authors are attempting to undertake an explainable featured engineering approach to extract physics semantics from infrared imaging data and link them to holes and insufficient penetration of Al-Cu joints.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2023.09.251