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Proceedings Paper

Spectroscopic investigation of laser-induced plasma in laser beam welding
Author(s): J. Bruncko; Frantisek Uherek; Dusan Chorvat Jr.; Miroslav Michalka; P. Fodrek
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Paper Abstract

The contribution deals with the diagnostics of laser induced plasma (LIP) by optical emission spectroscopy. Laser induced plasma occurs during laser welding and reveals important information about technological process. The performed experiments were concerned with in-time spectral analysis (wavelength range: 200-800 nm) of laser induced plasma of austenitic steel (18% Cr, 9% Ni) during cw CO2 laser welding. Circumstances of conversion from conducting mode to keyhole mode (and vice versa) were investigated. A comparison of the characteristics of the spectrum emission, penetration characteristics and input welding parameters was also studied.

Paper Details

Date Published: 30 April 2002
PDF: 7 pages
Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); doi: 10.1117/12.464119
Show Author Affiliations
J. Bruncko, International Laser Ctr. (Slovak Republic)
Frantisek Uherek, International Laser Ctr. (Slovak Republic)
Dusan Chorvat Jr., International Laser Ctr. (Slovak Republic)
Miroslav Michalka, International Laser Ctr. (Slovak Republic)
P. Fodrek, Welding Research Institute (Slovak Republic)

Published in SPIE Proceedings Vol. 4644:
Seventh International Conference on Laser and Laser-Information Technologies
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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