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:
Oct. 06, 2015
Filed:
May. 19, 2011
Juergen Steinwandel, Uhldingen-Muehlhofen, DE;
Domenico Furfari, Hamburg, DE;
Nikolaus Ohrloff, Buxtehude, DE;
Claudio Dalle Donne, Munich, DE;
Juergen Steinwandel, Uhldingen-Muehlhofen, DE;
Domenico Furfari, Hamburg, DE;
Nikolaus Ohrloff, Buxtehude, DE;
Claudio Dalle Donne, Munich, DE;
Airbus Operations GmbH, Hamburg, DE;
Abstract
The present invention provides a method for preventing the forming of cracks and slowing the crack propagation in metallic airplane structural parts by laser shock peening with the following steps: Providing an airplane structural part having a crack; irradiating a first surface area of the airplane structural part close to the crack with a first pulsed laser beam having a first wavelength and a first pulsation frequency, wherein energy of the first laser beam is absorbed by the airplane structural part and a shock wave runs through the airplane structural part, which creates compressive prestressings in the airplane structural part.