Grooved blade outer air seals
AssigneeUnited Technologies Corporation
InventorsMichael G McCaffrey, Alan C. Barron
Life of this patent
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Abstract
A blade outer air seal for a turbomachine includes a base portion configured to attach to a turbomachine housing, a thermal coating disposed on the base portion, and at least one groove defined in an external surface of the thermal coating. The groove can be machined. A method of manufacturing a blade outer air seal includes disposing a thermal coating on a base portion, and machining at least one groove into the thermal coating. The method can also include using an automated force sensing and vision sensing equipped robotic system.
Claims15
A blade outer air seal for a turbomachine, comprising:
- a base portion configured to attach to a turbomachine housing;
- a thermal coating disposed on the base portion;
- and
- at least one groove defined in an external surface of the thermal coating, wherein the at least one groove includes a first groove and at least one second groove at least partially intersecting the first groove and wherein the first groove is machined into the thermal coating to a first depth that does not extend through to the base portion and the at least one second groove is machined into the thermal coating at a second depth, the first depth being greater than the second depth.
A method of manufacturing a blade outer air seal, comprising:
- disposing a thermal coating on a base portion of the blade outer air seal;
- and
- machining at least one groove into an external surface of the thermal coating, wherein the at least one groove includes a first groove and at least one second groove at least partially intersecting the first groove and wherein the first groove is machined into the thermal coating to a first depth that does not extend through to the base portion and the at least one second groove is machined into the thermal coating at a second depth, the first depth being greater than the second depth.
Dependencies are inferred from the claim text.