LOCALIZED REPAIR OF THE COMPONENT FROM SUPERALLOY Russian patent published in 2017 - IPC B23P6/00 B23K26/34 F01D5/00 

FIELD: metallurgy.

SUBSTANCE: method includes removing the component from service, removing the damaged part of the component to open the repair surface, covering the repair surface with a layer of powder including the superalloy material and flux, exposing the surface of the formed powder layer to the selected portion, and forming a structured first layer of superalloy material, attached to the surface to be repaired and covered with a layer of slag, removing the slag layer from the first layer of superalloy material A, coating at least the first layer of superalloy material with an additional amount of said powder, exposing the energy ray to an additional amount of powder to produce a second layer of superalloy material attached to the first layer and covered with a subsequent layer of slag, removing the subsequent slag layer. Repeat these steps coatings, exposure to and disposal until the superalloy material layers do not form part of the new component to replace the damaged portion, and a return component in operation. Component is a stationary or mobile gas turbine blade, and the damaged portion - honeycomb seal or end seal of the blade.

EFFECT: invention allows clad, join or repair more difficult weldable superalloy materials.

10 cl, 10 dwg