METHOD OF METAL POWDERS PRODUCING Russian patent published in 2016 - IPC B22F9/06 B23K26/00 

FIELD: technological processes.

SUBSTANCE: invention relates to production of metal powder. Method comprises metal donor powder heating to its fusion temperature, formation of metal drops and their cooling under inert gas environment and powder collection. Powder donor metal sample surface is heated by laser radiation, which is moved within powder donor metal sample surface area at rate, sufficient for formation of melt bath on it, which volume is from 10^-5 to 10 mm³. Fused metal amount from melt bath is crushed and blown by compressed inert gas stream to allow metal drops free flight until their cooling below melting temperature, wherein powder particles are collected in powder trap volume. Powder fraction size is adjusted by changing laser radiation power, and/or laser beam focusing, and/or speed of laser beam movement relative to powder donor metal sample surface, and/or duration of laser radiation action on donor metal sample, and/or by compressed inert gas stream pressure and speed.

EFFECT: enabling higher efficiency of metal powder production.

1 cl, 3 dwg