METHOD FOR WELDING PARTS MADE OF HEAT-RESISTANT NICKEL-BASED ALLOYS USING LASER RADIATION Russian patent published in 2021 - IPC B23K20/14 B23K26/354 B23K26/12 B82B3/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to a method for welding parts made of heat-resistant nickel- based alloys and can be used in various sectors of mechanical engineering and metallurgy. The method includes laser radiation treatment of a nanosecond pulsed laser with a cooling rate of the nanostructured surface, which ensures the formation of relief structures on it with a size of less than 100 nm. The overlap coefficient of laser beam spots is defined as the ratio of the area processed by two laser pulses to the area of one spot from the laser beam. After nanostructuring the surfaces of parts made of heat-resistant nickel-based alloys, their diffusion welding is carried out in a sealed chamber under the influence of pressure and heating of the welded parts made of heat-resistant nickel-based alloys in a vacuum or in an inert gas environment.

EFFECT: improving the quality of the joint of the welded parts.

7 cl, 3 dwg, 1 tbl