Bonding method for repair of superalloy article
AssigneeRtx Corporation
InventorsBrian T. Hazel, John R. Farris, Matthew A. Devore, John A. Sharon, James F. Wiedenhoefer, Paul M. Lutjen, Mario P. Bochiechio
Life of this patent
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Abstract
A method of repair of a part is provided and includes removing a section that is damaged from the part, casting a replacement section for the part, the replacement section having a geometry similar to that of the section in an undamaged condition and bonding the replacement section to the part using field assisted sintering technology (FAST).
Claims12
A method of repair of a turbine vane or platform of a gas turbine engine, the method comprising:
- milling a section that is damaged out of the turbine vane or the platform;
- casting a replacement section for the turbine vane or the platform, the replacement section having a geometry similar to that of the section in an undamaged condition;
- preparing a bond surface of the turbine vane or the platform and a corresponding bond surface of the replacement section for bonding;
- and
- bonding the replacement section to the turbine vane or the platform using field assisted sintering technology (FAST) at the bond surface of the turbine vane or the platform and the corresponding bond surface of the replacement section.
A method of repair of a turbine vane or platform of a gas turbine engine, the method comprising:
- milling a section that is damaged out of the turbine vane or the platform;
- casting a replacement section for the turbine vane or the platform, the replacement section having a geometry similar to that of the section in an undamaged condition;
- preparing a bond surface of the turbine vane or the platform and a corresponding bond surface of the replacement section for bonding;
- and
- bonding the replacement section to the turbine vane or the platform using field assisted sintering technology (FAST) at the bond surface of the turbine vane or the platform and the corresponding bond surface of the replacement section,
- wherein the bonding of the replacement section to the part comprises at least mechanical aligning of the replacement section with the part and the mechanical aligning comprises:
- adding alignment features to respective opposite sides of the part and the replacement section;
- and
- removing the alignment features from the respective opposite sides of the part and the replacement section following the bonding.
Dependencies are inferred from the claim text.