ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,738, issued on Oct. 27, was assigned to Rolls-Royce High Temperature Composites Inc. (Cypress, Calif.).
"Method of machining holes and chamfers in ceramic matrix composites" was invented by Chris Downie (Cypress, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming an aperture in a ceramic matrix composite material is provided. The method may comprise drilling a pilot hole into the ceramic matrix composite material and spiral machining the pilot hole to enlarge a diameter of the pilot hole, wherein the enlarged pilot hole is the aperture in the ceramic matrix composite material. The method may comprise spiral machining the pilot...