Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 13, 2023
0Patent Application Number
174019740
Date Filed
August 13, 2021
0Patent Citations
...
Patent Primary Examiner
CPC Code
A manufacturing method is provided. During this method, a preform component is provided for a turbine engine. The preform component includes a substrate comprising electrically conductive material having an outer coating comprising non-electrically conductive material applied over a surface of the substrate. A preform aperture is formed in the preform component using an electrical discharge machining electrode. The preform aperture includes a meter section of a cooling aperture in the substrate. The preform aperture also includes a pilot hole in the outer coating. A diffuser section of the cooling aperture is formed in at least the outer coating using a second machining process.
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