Electrocapillary acceleration of molten metal flows during keyhole formation by high-power laser radiation

R. D. Seidgazov, F. Kh. Mirzade

National Research Centre "Kurchatov Institute", Moscow

Abstract: To explain experimentally observed patterns qualitatively during keyhole formation in metals by high-power laser radiation, the mechanism of electrodynamic processes influence on the acceleration of thermocapillary melt flow is proposed, taking into account the coupling of thermoemission of charges, electrocapillary and hydrodynamic processes inside a keyhole.

Keywords: laser radiation, keyhole, electric field, thermal emission, electrocapillarity.

Received: 13.11.2024
Revised: 05.03.2025
Accepted: 16.03.2025

DOI: 10.61011/PJTF.2025.12.60604.20184

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