Invention Grant
- Patent Title: Castings and manufacture methods
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Application No.: US15958321Application Date: 2018-04-20
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Publication No.: US11213885B2Publication Date: 2022-01-04
- Inventor: Thomas W. Prete , John J. Marcin, Jr. , Russell A. Beers
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Bachman & LaPointe, P.C.
- Main IPC: C23C28/04
- IPC: C23C28/04 ; B22D19/00 ; F01D5/18 ; C23C28/00
Abstract:
A method includes casting a metallic material (56) in a mold (20) containing a core, the core having a substrate (40, 44) coated with a coating (42). A removing of the metallic material from the mold and decoring leaves a casting having a layer formed by the coating. The coating has a ceramic having a porosity in a zone (50) near the substrate less than a porosity in a zone (52) away from the substrate.
Public/Granted literature
- US20180236533A1 Castings and Manufacture Methods Public/Granted day:2018-08-23
Information query
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