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US 2026/0085613 A1Published application
Turbine airfoil cooling hole thermal barrier coating removal
AssigneeRtx Corporation
InventorsOmar Anwar-Krumeich, Calvin D. Nutbrown, Leah M. Collins
Life of this patent
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Abstract
A cooling passage forming process including providing an article comprising at least one wall having an exterior surface; forming at least one cooling passage through the at least one wall extending through the exterior surface; coating the exterior surface of the article with a coating system; and removing the coating system located within the cooling passage.
Claims20
A cooling passage forming process comprising:
- providing an article comprising at least one wall having an exterior surface;
- forming at least one cooling passage through the at least one wall extending through the exterior surface;
- coating the exterior surface of the article with a coating system;
- and
- removing the coating system located within the cooling passage.
2 more elements
A cooling passage forming process comprising:
- providing an article comprising at least one wall having an exterior surface;
- forming at least one cooling passage through the at least one wall extending through the exterior surface;
- forming a meter section in the at least one cooling passage;
- forming a diffuser section in the at least one cooling passage;
- coating the exterior surface of the article with a coating system;
- and
- removing the coating system located within the at least one cooling passage.
4 more elements
A process for forming a cooling passage comprising:
- providing an article comprising at least one wall having an exterior surface;
- forming at least one cooling passage through the at least one wall extending through the exterior surface;
- forming a meter section in the at least one cooling passage;
- forming a diffuser section in the at least one cooling passage;
- forming the at least one cooling passage employing an electric-discharge machining technique;
- coating the exterior surface of the article with a coating system;
- and
- removing the coating system located within the at least one cooling passage.
5 more elements
Dependencies are inferred from the claim text.