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:
May. 17, 2011
Filed:
May. 18, 2010
Mark Samuel Bailey, Fairfield, OH (US);
Michael Paul Hausfeld, Sharonville, OH (US);
Donald Eugene Williams, Jr., Loveland, OH (US);
Todd Jay Rockstroh, Maineville, OH (US);
Mark Samuel Bailey, Fairfield, OH (US);
Michael Paul Hausfeld, Sharonville, OH (US);
Donald Eugene Williams, Jr., Loveland, OH (US);
Todd Jay Rockstroh, Maineville, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for simultaneously laser shock peening opposite laser shock peening surfaces on opposite sides of an article, such as a gas turbine engine airfoil, with varying thickness using oppositely aimed laser beams and varying surface fluence of the laser beams over the laser shock peening surfaces as a function of the thickness of the article beneath each one of a plurality of laser shock peened spots formed by the beams on the surfaces. The fluence may be equal to the thickness multiplied by a volumetric fluence factor, the volumetric fluence factor being held constant over the laser shock peening surface. The volumetric fluence factor may be in a range of about 1200 J/cmto 1800 J/cmand more particularly about 1500 J/cm. Laser beam energy may be varied with a computer program controlling firing of the laser beam.