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

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Department of Mechanical Engineering, Turku University of Applied Sciences, Joukahaisenkatu 3, FIN-20520 Turku, Finland
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Machine Technology Center Turku Ltd., Lemminkäisenkatu 28, FIN-20520 Turku, Finland
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Department of Mechanical Engineering, University of Turku, FI-20014 Turku, Finland
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Research Group of Laser Material Processing and Additive Manufacturing, School of Energy Systems, LUT University, FI-53851 Lappeenranta, Finland
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Valmet Automotive, Autotehtaankatu 14, FIN-23500 Uusikaupunki, Finland
*
Author to whom correspondence should be addressed.
Batteries 2020, 6(3), 47; https://doi.org/10.3390/batteries6030047
Received: 6 August 2020 / Revised: 4 September 2020 / Accepted: 11 September 2020 / Published: 16 September 2020
(This article belongs to the Special Issue Batteries and Electric Vehicles)
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. View Full-Text
Keywords: productivity; battery module; busbar; photogrammetry; laser welding; productivity; electric vehicle productivity; battery module; busbar; photogrammetry; laser welding; productivity; electric vehicle
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MDPI and ACS Style

Saariluoma, H.; Piiroinen, A.; Unt, A.; Hakanen, J.; Rautava, T.; Salminen, A. Overview of Optical Digital Measuring Challenges and Technologies in Laser Welded Components in EV Battery Module Design and Manufacturing. Batteries 2020, 6, 47. https://doi.org/10.3390/batteries6030047

AMA Style

Saariluoma H, Piiroinen A, Unt A, Hakanen J, Rautava T, Salminen A. Overview of Optical Digital Measuring Challenges and Technologies in Laser Welded Components in EV Battery Module Design and Manufacturing. Batteries. 2020; 6(3):47. https://doi.org/10.3390/batteries6030047

Chicago/Turabian Style

Saariluoma, Heikki, Aki Piiroinen, Anna Unt, Jukka Hakanen, Tuomo Rautava, and Antti Salminen. 2020. "Overview of Optical Digital Measuring Challenges and Technologies in Laser Welded Components in EV Battery Module Design and Manufacturing" Batteries 6, no. 3: 47. https://doi.org/10.3390/batteries6030047

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