СПОСОБ ИСПРАВЛЕНИЯ ДЕФЕКТОВ НА ОТЛИВКАХ ЛОПАТОК ГАЗОТУРБИННОГО ДВИГАТЕЛЯ

摘要

FIELD: welding production process, possibly flaw correction of castings of nickel-base high-alloy refractory alloys. ^ SUBSTANCE: method comprises steps of hot gas-static compaction of castings; separating flaw containing casing portion having surface micro-porosity just before compaction; subjecting said portion of sand-blast treatment; then spraying onto it coating whose chemical content is almost the same as of casting material; performing heat treatment of casting in vacuum at temperature lower than temperature of alloy homogenizing; rayed coating has thickness no less than 200 - 300 micrometers. ^ EFFECT: reliable effective correction of flaws of casting of gas turbine engine blades. ^ 2 cl, 1 ex