Experimental investigation on stainless steel welding with a 15 kW fibre laser-Reference-Cited by-同舟云学术

Experimental investigation on stainless steel welding with a 15 kW fibre laser

Published:2014-03 Issue:3 Volume:92 Page:246-252
ISSN:0008-4204
Container-title:Canadian Journal of Physics
language:en
Short-container-title:Can. J. Phys.

Author:

Foster M.¹,Beaulieu R.²,Blais L.¹,Caron G.¹,Langlois M.³

Affiliation:

1. Novika Solutions, 129, rue du Parc-de-l’Innovation, La Pocatière, QC G0R 1Z0, Canada.

2. Cégep de La Pocatière,140, 4e Avenue, La Pocatière, QC G0R 1Z0, Canada.

3. OPTECH,129, rue du Parc-de-l’Innovation, La Pocatière, QC G0R 1Z0, Canada.

Abstract

In the present study, attenuation of the laser beam because of the induced plume during bead-on-plate welding of an austenitic stainless steel plate with a 15 kW fibre laser beam, was investigated to better understand laser welding phenomena. A high-speed video camera was used to monitor the plume and keyhole behaviour. Attenuation and refraction levels, due to the induced plume, were measured by different wavelengths laser probes. Finally, a high resolution spectrometer was used to analyze spectral emission from the induced plasma plume by the fibre laser beam. The Boltzmann plot method was used to estimate the temperature of laser-induced plasma plume and Saha’s equation was applied to calculate the ionization degree.

Publisher

Canadian Science Publishing

Subject

General Physics and Astronomy

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/cjp-2012-0558

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