The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Jun. 18, 2014
Siemens Energy, Inc., Orlando, FL (US);
Ching-Pang Lee, Cincinnati, OH (US);
Nan Jiang, Charlotte, NC (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
MIKRO SYSTEMS, INC., Charlottesville, VA (US);
Abstract
A method of forming an airfoil (), including: abutting end faces () of cantilevered film hole protrusions () extending from a ceramic core () against an inner surface () of a wax die () to hold the ceramic core in a fixed positional relationship with the wax die; casting an airfoil including a superalloy around the ceramic core; and machining film cooling holes () in the airfoil after the casting step to form an pattern of film cooling holes comprising the film cooling holes formed by the machining step and the cast film cooling holes () formed by the film hole protrusions during the casting step.