Countering laser shock peening induced blade twist

Details Countering laser shock peening induced blade twist Countering laser shock peening induced blade twist

2007-04-17

2007-04-17

Nguyen, Ninh H. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

C416S243000, C416S248000

Reexamination Certificate

active

11171087

ABSTRACT:
A method for laser shock peening a gas turbine engine blade includes laser shock peening a thin airfoil of the blade, forming a laser shock induced twist in the airfoil, and altering a root of the blade to counter the laser shock induced twist in the airfoil. The altering may be done after the laser shock peening. The altering may be done before the laser shock peening during casting or forging of the blade or during a machining or broaching procedure which cuts a shape of the root. One embodiment of the altering includes forming the root with an altered root centerline having an altered centerline angle with respect to a predetermined root centerline designed for a non-laser shock peened airfoil of the blade.

REFERENCES:
patent: 3850698 (1974-11-01), Mallozzi et al.
patent: 4937421 (1990-06-01), Ortiz et al.
patent: 5409415 (1995-04-01), Kawanami et al.
patent: 5492447 (1996-02-01), Mannava et al.
patent: 5531570 (1996-07-01), Mannava et al.
patent: 5591009 (1997-01-01), Mannava et al.
patent: 5674328 (1997-10-01), Mannava et al.
patent: 5674329 (1997-10-01), Mannava et al.
patent: 5744781 (1998-04-01), Yeaton
patent: 5756965 (1998-05-01), Mannava
patent: 5873770 (1999-02-01), Hashimoto
patent: 5932120 (1999-08-01), Mannava et al.
patent: 6215097 (2001-04-01), Mannava
patent: 6220947 (2001-04-01), Wheat et al.
patent: 6852179 (2005-02-01), Toller et al.
patent: 0 794 264 (1997-09-01), None
European Patent Office, European Search Report w/ Annex, 6 pages.

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