Electrocapillary acceleration of molten metal flows during keyhole formation by high-power laser radiation
Seidgazov R. D. 1, Mirzade F. Kh. 1
1National Research Center “Kurchatov Institute”, Moscow, Russia
Email: seidgazov@mail.ru, fmirzade@rambler.ru

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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.
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