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Title:
LOW FLUENCE BOUNDARY OBLIQUE LASER SHOCK PEENING
Document Type and Number:
Japanese Patent JP2005248326
Kind Code:
A
Abstract:

To provide a laser shock peening method.

The laser shock peening method includes laser shock peening a first area (14) with at least one high fluence normal laser beam (16) and laser shock peening a border area (20) between the first area (14) and a non-laser shock peened area (22) of the article (10) with at least one first low fluence oblique laser beam (24). The second low fluence oblique laser beam (45) and others have a lower fluence than the first low fluence oblique laser beam (24). The border area (20) may be laser shock peened with progressively lower fluence oblique laser beams starting with the one first fluence oblique laser beam (24) wherein the progressively lower fluence oblique laser beams are in order of greatest fluence to least fluence in a direction outwardly from the first area through the border area (20) to the non-laser shock peened area (22).


Inventors:
MANNAVA SEETHA RAMAIAH
SHEPHERD WILLIAM WOODROW
Application Number:
JP2005055397A
Publication Date:
September 15, 2005
Filing Date:
March 01, 2005
Export Citation:
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Assignee:
GEN ELECTRIC
International Classes:
B23K26/00; C21D1/09; C21D7/06; C21D10/00; C22F1/00; C22F1/18; B23K103/14; (IPC1-7): C22F1/18; B23K26/00
Domestic Patent References:
JPH06297168A1994-10-25
JPS5829592A1983-02-21
JPH10176216A1998-06-30
JP2002030343A2002-01-31
Foreign References:
WO1995025821A11995-09-28
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa