Spectroscopic studies of laser induced plume during welding with a Nd:YAG laser
Conference
·
OSTI ID:522464
- L.E.M.T.A., Vandoeuvre-les-Nancy (France). Faculte des Sciences
- Centre Technique FRAMATOME, Le Creusot (France)
The authors study the laser-induced plume created during steel welding. The plume emission is measured with a spectrograph and a Photodiodes Array Detector (PDA). They study the evolution of temperature and electron density for several welding parameters (laser energy, pulse duration and shielding gases). 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.
- OSTI ID:
- 522464
- Report Number(s):
- CONF-9606246--; ISBN 0-8194-2175-8
- Country of Publication:
- United States
- Language:
- English
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