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13 March 2024 Beam shaping with multi-plane light conversion to improve laser beam welding for e-mobility applications
Avinash Kumar, Adeline Orieux, Nicolas Gaillard, Romain Cornee, Gwenn Pallier, David Lemaitre, Pu Jian, Guillaume Labroille
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Proceedings Volume 12878, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XIII; 1287807 (2024) https://doi.org/10.1117/12.3004509
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
Laser welding is crucial for manufacturing e-mobility components, particularly copper and aluminum parts. However, their high reflectivity and thermal conductivity present challenges, leading to inadequate penetration and weaker welds. Beam shaping offers a promising solution by modifying the laser beam's intensity distribution. In this study, we demonstrate successful welding of aluminum battery cases, copper busbars, and hairpins using Multi-Plane Light Conversion for beam shaping. Results show improved weld quality, reduced defects, and enhanced mechanical properties. The technique provides a higher depth of field and an extra degree of freedom for optimizing weld quality, promising efficient and reliable manufacturing of e-mobility components.
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Avinash Kumar, Adeline Orieux, Nicolas Gaillard, Romain Cornee, Gwenn Pallier, David Lemaitre, Pu Jian, and Guillaume Labroille "Beam shaping with multi-plane light conversion to improve laser beam welding for e-mobility applications", Proc. SPIE 12878, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XIII, 1287807 (13 March 2024); https://doi.org/10.1117/12.3004509
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KEYWORDS
Beam shaping
Aluminum
Copper
Batteries
Depth of field
Laser welding
Manufacturing
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