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:
Nov. 08, 2011
Filed:
Dec. 30, 2006
Alberto Luna, Greenville, SC (US);
Joshua Leigh Miller, West Chester, OH (US);
William Terence Dingwell, Lebanon, OH (US);
Michael Jay Brunck, Cincinnati, OH (US);
William Lee Imhoff, Hamilton, OH (US);
Paul Moncelle, Cincinnati, OH (US);
Dale Robert Lombardo, Blue Ash, OH (US);
Andrew Philip Woodfield, Maineville, OH (US);
Alberto Luna, Greenville, SC (US);
Joshua Leigh Miller, West Chester, OH (US);
William Terence Dingwell, Lebanon, OH (US);
Michael Jay Brunck, Cincinnati, OH (US);
William Lee Imhoff, Hamilton, OH (US);
Paul Moncelle, Cincinnati, OH (US);
Dale Robert Lombardo, Blue Ash, OH (US);
Andrew Philip Woodfield, Maineville, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method of reducing crack propagation in an airfoil includes: providing an airfoil having a root spaced apart from a tip, spaced-apart leading and trailing edges, a suction side extending from the leading edge to the trailing edge, and an opposed pressure side extending from the leading edge and the trailing edge, supporting the airfoil against bending loads; and burnishing the airfoil using a burnishing element, so as to create at least one burnished section of residual compressive stress, the at least one burnished section being located adjacent the leading edge and spaced from the leading edge by an offset distance selected so as to avoid deformation of the leading edge.