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US 9,751,187 B2Granted
Systems and methods for finishing flow elements
AssigneeUnited Technologies Corporation
InventorsMicah Beckman, Osamuyimen A. Oyegun
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Abstract
Systems and methods for finish portions of parts for gas turbine engines are provided. More specifically, systems and methods for finishing flow elements (e.g., stator vanes and turbine blades) or gas turbine engines are provided. The systems and methods may employ grit blasting, fluidic machining, and/or super polishing. Moreover, the flow elements may be inspected and/or evaluated between the one or more processing steps.
Claims17
A method comprising:
- fluidic machining at least a portion of a flow element to obtain a surface roughness of no more than 20 RA;
- inspecting the portion of the flow element;
- and
- after fluidic machining, super polishing the portion of the flow element to obtain a surface roughness of no more than 10 RA.
1 more element
A method, comprising:
- subjecting a first part and a second part to a grit blast operation, wherein the first part comprises a first plurality of flow elements and the second part comprises a second plurality of flow elements
- subjecting the first part and the second part to a fluidic machining operation;
- and
- subjecting the first part and the second part to a super polishing process, wherein the surface roughness of the first plurality of flow elements and the second plurality of flow elements is not greater than 10 RA;
- wherein the fluidic machining operation introduces detectable gouges in at least one of the first part and the second part.
2 more elements
Dependencies are inferred from the claim text.