Laser build-up method

Abstract

Provided is a laser build-up method capable of building up a layer with a uniform weld penetrating amount on first and second surfaces even when non-uniformity in distribution of supplied metallic powder due to the shape of a joint or the effect of gravity. A laser build-up method for a corner region formed by a first surface (11) and a second surface (12) in a different orientation from the first surface includes: supplying metallic powder (55) to the corner region; forming a melted part by performing weaving irradiation of a laser (25) on the first and second surfaces (11, 12) under a predetermined irradiation condition and melting the metallic powder (55); measuring a first temperature of the melted part of the first surface (11) and a second temperature of the melted part of the second surface (12); and setting the irradiation condition based on the first and second temperatures.

Dependencies are inferred from the claim text.