FIELD: metallurgy.
SUBSTANCE: invention relates to welding engineering and can be used for defect attack on details in the form of thin-section casting made of heat-resistant alloy. Method includes detection and defect mechanical sample with creating of sorting on detail, following welding of the latter by adding material by means of nonconsumable tungsten electrode in protective gas medium. Sorting on detail is implemented in the form of reach-through parallel or conical bore with diameter in sorting bottom, equal to 1.3 till 2.0 of maximal defect linear dimensions and no les than 5.0 mm. Conical bore in sorting is implemented with bevel no more than 15°. Sorting welding on the detail is implemented on padding made of heat-resistant alloy, containing strengthen γ'-phase no more than 5.0%.
EFFECT: increased quality of defects welding.
7 cl, 3 dwg, 1 ex
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