Quality Inspection System for Robotic Laser Welding of Double-Curved Geometries

Mikkelstrup, Anders Faarbæk; Thomsen, Mathias Ramsø; Stampe, Kristoffer; Endelt, Benny Ørtoft; Boll, J.; Kristiansen, Ewa; Kristiansen, Morten

doi:10.1016/j.promfg.2019.08.008

Cited by 2 publications

(1 citation statement)

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“…Modular architecture ensures the durability of the battery pack and is needed to meet critical performance requirements: prevention of thermal runaway, vibration isolation and crash protection. Positioning accuracy of the components during pack assembly is a key factor determining the quality of connections [11][12][13][14][15]. Quality of the welded joint is strongly dependent on the precision of the module geometry, any dimensional deviations compromise the integrity of the pack and cause safety issues due to the weakened vibration and crash force resistance [16].…”

Section: Introductionmentioning

confidence: 99%

Overview of Optical Digital Measuring Challenges and Technologies in Laser Welded Components in EV Battery Module Design and Manufacturing

et al. 2020

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Ensuring the precision and repeatability of component assembly in the production of electric vehicle (EV) battery modules requires fast and accurate measuring methods. The durability of EV battery packs depends on the quality of welded connections, therefore exact positioning of the module components is critical for ensuring safety in exploitation. Laser welding is a non-contact process capable of welding dissimilar materials with high precision, for that reason it has become the preferred joining method in battery production. In high volume manufacturing, one of the main production challenges is reducing the time required for assessment of dimensional and geometrical accuracy prior to joining. This paper reviews the challenges of EV battery design and manufacturing and discusses commercially available scanner-based measurement systems suitable for fabrication of battery pack components. Versatility of novel metrological systems creates new opportunities for increasing the production speed, quality and safety of EV battery modules.

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