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Proceedings Paper

Spectroscopic investigations of CO and CO2 laser-induced aluminum welding plasmas
Author(s): Martin Schellhorn; A. Eichhorn
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Paper Abstract

Average electron densities and temperatures were measured for both carbon and carbon-dioxide laser induced aluminum welding plasmas using spectroscopic techniques. The plasma temperature is smaller in the case of carbon laser welding, whereas the electron density is slightly higher. Therefore the absorption length (inverse bremsstrahlung) of the carbon laser radiation in the welding zone is a factor of 2 to 7 longer. This is the reason for the better weld seam quality obtained with the carbon laser.

Paper Details

Date Published: 4 April 1997
PDF: 4 pages
Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); doi: 10.1117/12.270121
Show Author Affiliations
Martin Schellhorn, ISL French German Research Institute (France)
A. Eichhorn, Deutsch-Franzoesisches Forschungsinstitut ISL (France)


Published in SPIE Proceedings Vol. 3092:
XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Denis R. Hall; Howard J. Baker, Editor(s)

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