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17 March 2023 Stainless steel laser beam welding with a dynamic tailored beam shaping laser-head based on multi-plane light conversion
Matthieu Meunier, Avinash Kumar, Aymeric Lucas, Stephane Bernard, Rosa Arias, Jorge Luis Arias Otero, Gwenn Pallier, Guillaume Labroille
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Proceedings Volume PC12414, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XII; PC1241407 (2023) https://doi.org/10.1117/12.2655458
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
Laser Beam Welding (LBW) of complex materials, such as ferritic and austenitic steel, is challenging. An appropriate beam shape improves the process by stabilizing the keyhole. A methodology for tailoring the beam shape has been developed. The appropriate shape for LBW of 1mm thick steel is an inner intense spot and a background top-hat shape. A dynamic beam shaper based on Multi-Plane Light Conversion has been developed: the ratio between the shapes and the back shape dimensions can be adjusted. The optical performance and the impact on the quality of the process with a 8kW 1.07µm laser are described.
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Matthieu Meunier, Avinash Kumar, Aymeric Lucas, Stephane Bernard, Rosa Arias, Jorge Luis Arias Otero, Gwenn Pallier, and Guillaume Labroille "Stainless steel laser beam welding with a dynamic tailored beam shaping laser-head based on multi-plane light conversion", Proc. SPIE PC12414, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XII, PC1241407 (17 March 2023); https://doi.org/10.1117/12.2655458
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KEYWORDS
Beam shaping
Laser welding
Laser applications
Optical simulations
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