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:
Jun. 15, 2010
Filed:
Sep. 29, 2006
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 laser shock peening an article, such as a gas turbine engine airfoil, with varying thickness by varying a surface fluence of a laser beam over a laser shock peening surface as a function of the thickness beneath a laser shock peened spot formed by the beam on the surface. 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. The method may include varying energy in the laser beam using a computer program controlling firing of the laser beam. A device such as an optical attenuator external to a laser performing firing may be used to vary the energy.