FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy and can be used for the production of monocrystalline working blades for gas turbines with the improved characteristics of the resource and the operating temperature. In manufacturing the monocrystalline rotor blades of gas turbines, a monocrystalline blade billet of the specified crystallographic orientation is cast, the metal penetration and the remnants of ceramics are removed from the cast surface by means of sandblasting, with the following blade size control to determine the allowance amount to be removed by abrasion. After the allowance removal, the blade surface treated by an abrasive is etched in order to remove the defective surface layer with the distorted crystal structure. Then high-temperature annealing of the blade is carried out.
EFFECT: invention allows to improve the quality of the blades due to the stabilisation of the monochrystalline structure of the working turbine blades during their production.
2 cl, 2 dwg
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