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Proceedings Paper

Invited Paper Plasma Fluctuations During Laser Machining With cw-CO2-Lasers
Author(s): E. Beyer; G. Herziger; A. Gasser; W. Sokolowski
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Paper Abstract

In different laser applications the laser induced plasma governs the process of energy coupling into the workpiece particularly in laser welding. Using a cw-0O2-laser, the plasma shows temporal and spatial fluctuations with typical frequencies. During these fluctuations the Plasma disappears completely for approximately 0.2 ms. Amongst other things it is demonstrated that there is a strong correlation between the plasma fluctuations and the dynamics of the molten metal.

Paper Details

Date Published: 22 September 1987
PDF: 7 pages
Proc. SPIE 0801, High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics, (22 September 1987); doi: 10.1117/12.941239
Show Author Affiliations
E. Beyer, Fraunhofer-Institut fur Lasertechnik (Germany)
G. Herziger, Fraunhofer-Institut fur Lasertechnik (Germany)
A. Gasser, Fraunhofer-Institut fur Lasertechnik (Germany)
W. Sokolowski, Fraunhofer-Institut fur Lasertechnik (Germany)


Published in SPIE Proceedings Vol. 0801:
High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics
Ernst-Wolfgang Kreutz; A. Quenzer; Dieter Schuoecker, Editor(s)

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