Spectroscopic studies of laser-induced plume during welding with an Nd:YAG laser

David Lacroix; G. Jeandel; Cecile Boudot

doi:10.1117/12.251181

23 September 1996 Spectroscopic studies of laser-induced plume during welding with an Nd:YAG laser

David Lacroix, G. Jeandel, Cecile Boudot

Proceedings Volume 2789, High-Power Lasers: Applications and Emerging Applications; (1996) https://doi.org/10.1117/12.251181
Event: Lasers, Optics, and Vision for Productivity in Manufacturing I, 1996, Besancon, France

Abstract

We study the laser-induced plume created during steel welding. The plume emission is measured with a spectrograph and a photodiodes array detector. We study the evolution of temperature and electron density for several welding parameters. Temperature and density calculations are based on the observation of line intensities and shapes. The other part of this study presents briefly a theoretical model which allows calculating the densities of each component of a complex plasma; like the one of stainless steel. These calculations yield the absorption of the laser energy in the plume.

Citation Download Citation

David Lacroix, G. Jeandel, and Cecile Boudot "Spectroscopic studies of laser-induced plume during welding with an Nd:YAG laser", Proc. SPIE 2789, High-Power Lasers: Applications and Emerging Applications, (23 September 1996); https://doi.org/10.1117/12.251181

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