Fully reflective annular laser beam shaping for 1.03µm ultra-high throughput laser beam welding (Conference Presentation)

Matthieu Meunier; David Lemaitre; Antonin Billaud; Antoine Queffelec; Romain Cornee; Gwenn Pallier; Olivier Pinel; Eric Laurensot; Guillaume Labroille

doi:10.1117/12.2545597

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9 March 2020 Fully reflective annular laser beam shaping for 1.03µm ultra-high throughput laser beam welding (Conference Presentation)

Matthieu Meunier, David Lemaitre, Antonin Billaud, Antoine Queffelec, Romain Cornee, Gwenn Pallier, Olivier Pinel, Eric Laurensot, Guillaume Labroille

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Proceedings Volume 11273, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems IX; 112730H (2020) https://doi.org/10.1117/12.2545597
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

Multi-kilowatt Laser Beam Welding processes are facing new challenges: reducing the final parts weight and improving reliability to decrease the amount of discarded parts. Appropriate beam shaping enables those improvements by decreasing the process defects and by allowing welding of new types of materials and of thinner parts. We describe here the design and the process test results of a fully reflective beam shaper laser head compatible with high-power lasers demands integrated on a robot. The high efficiency cooling permitted by a reflective design reduces focus shift. A mm-wide annular shape onto the processed part enables melt pool size control.

Conference Presentation

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Matthieu Meunier, David Lemaitre, Antonin Billaud, Antoine Queffelec, Romain Cornee, Gwenn Pallier, Olivier Pinel, Eric Laurensot, and Guillaume Labroille "Fully reflective annular laser beam shaping for 1.03µm ultra-high throughput laser beam welding (Conference Presentation)", Proc. SPIE 11273, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems IX, 112730H (9 March 2020); https://doi.org/10.1117/12.2545597

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