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:
Jan. 28, 2014
Filed:
Sep. 23, 2011
Nicholas Shawn Woodard, Monroe, OH (US);
Michael H. Rucker, Loveland, OH (US);
John Louis Cupito, Loveland, OH (US);
Richard R. Worthing, Jr., Liberty Township, OH (US);
Albert King, Milan, IN (US);
Nicholas Shawn Woodard, Monroe, OH (US);
Michael H. Rucker, Loveland, OH (US);
John Louis Cupito, Loveland, OH (US);
Richard R. Worthing, Jr., Liberty Township, OH (US);
Albert King, Milan, IN (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method of repairing damaged airfoils. The method comprises the steps of stripping thermal barrier coatings from the airfoil. After the coatings are removed, cracks are removed from the airfoil. Cracks that appear in the bond coat area over the airfoil fillet portion are removed by locally grit blasting the fillet portion of the airfoil. This operation also results in locally removing the bond coating from the fillet portion. Cracks and other damage sustained by the airfoil tip are removed and replaced by welding superalloy material. The airfoil then may be cleaned by thermal etching. The airfoil is then placed in a plating tool permitting preferential plating of airfoil areas from which plating has been removed. After plating, the airfoil is then heat treated to diffuse the platinum coating with the superalloy substrate materials. The diffusion heat treated airfoil is aluminided by any aluminiding process, forming a PtAl coating.