Oscillation mechanisms in the deep keyhole during CW CO2 laser welding

Vladimir I. Ledenev; F. Kh. Mirzoyev; V. A. Nicolo

doi:10.1117/12.171640

1 April 1994 Oscillation mechanisms in the deep keyhole during CW CO2 laser welding

Vladimir I. Ledenev, F. Kh. Mirzoyev, V. A. Nicolo

Author Affiliations +

Proceedings Volume 2257, Russia National Conference: Industrial Lasers and Laser Material Processing; (1994) https://doi.org/10.1117/12.171640
Event: Industrial Lasers and Laser Material Processing: Russian National Conference, 1993, Shatura, Moscow Region, Russian Federation

Abstract

The melt surface oscillations during the nonpenetrating cw CO₂ laser welding of metals are studied. It is assumed that the concurrence between the melt expelling from the keyhole bottom by the vapor pressure and the capillary and the gravity forces tendency to fill the keyhole is the main cause of building up the oscillations. Assuming that the radiation flux being transported to the bottom is unstable, the possibility of parametric inducing melt oscillations on its bottom is investigated.

Citation Download Citation

Vladimir I. Ledenev, F. Kh. Mirzoyev, and V. A. Nicolo "Oscillation mechanisms in the deep keyhole during CW CO2 laser welding", Proc. SPIE 2257, Russia National Conference: Industrial Lasers and Laser Material Processing, (1 April 1994); https://doi.org/10.1117/12.171640

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