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:
Feb. 09, 2016
Filed:
Dec. 19, 2013
Hang LI, Charlotte, NC (US);
Mark A. Garcia, Pfafftown, NC (US);
Somesh J. Ghunakikar, Orlando, FL (US);
William J. Lowe, Pfafftown, NC (US);
Hang Li, Charlotte, NC (US);
Mark A. Garcia, Pfafftown, NC (US);
Somesh J. Ghunakikar, Orlando, FL (US);
William J. Lowe, Pfafftown, NC (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A process for repairing combined heavy erosion and thermal fatigue cracks and/or other defects, such as large cracks, in a high temperature superalloy component, such as a vane in a turbine section of a gas turbine engine, that does not require mechanical grinding to prepare the defect site. The process includes depositing a loose finely granulated superalloy powder or a low viscosity superalloy slurry in the crack up to a suitable level and then depositing a superalloy putty layer on the superalloy powder or slurry at the top of the crack A braze putty layer is then deposited over the superalloy putty layer and the component is sintered in a vacuum furnace to harden the superalloy putty and powder or slurry to repair the defect.