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US 11,529,674 B2Granted
Refractory metal core finishing technique
AssigneeRaytheon Technologies Corporation
InventorsDewight R. Cassells, Alan C. Barron, John P. Rizzo, Gordon Miller Reed, Tracy A. Propheter-Hinckley
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Abstract
A refractory metal core (RMC) finishing method according to an exemplary aspect of the present disclosure includes, among other things, performing a plurality of finishing operations on a plurality of RMC samples, analyzing one or more properties of at least a portion of the plurality of RMC samples and selecting a combination of finishing operations for generating an RMC having desirable properties for manufacturing a part free from defects.
Claims20
A method, comprising:
- measuring at least one property of a plurality of refractory metal core (RMC) samples;
- splitting the plurality of RMC samples into a first portion and a second portion different from the first portion;
- performing a first finishing operation on the first portion;
- and
- performing a second finishing operation on the second portion;
- wherein the measuring at least one property of the plurality of RMC samples includes measuring sharpness of break edges and a surface finish of the plurality of RMC samples.
3 more elements
Dependencies are inferred from the claim text.