1
James A Martus, Paul P Mehta, Seetharamaiah Mannava: Method for making or repairing a gas turbine engine component. General Electric Company, Charles L Moore Jr, Jerome C Squillaro, June 8, 1993: US05216808 (62 worldwide citation)

A method for making or repairing a gas turbine engine component includes the step of directing a pulsed ultra-violet laser beam on a location of a film cooling hole after application of a thermal barrier coating to athermally remove any coating material which may be obstructing the cooling hole with ...


2
Seetharamaiah Mannava, Robert L Yeaton, Albert E McDaniel: Dry tape covered laser shock peening. General Electric Company, Andrew C Hess, Nathan D Herkamp, October 7, 1997: US05674328 (48 worldwide citation)

A method of laser shock peening a metallic part by firing a laser on a laser shock peening surface of the part which has been adhesively covered by tape having an ablative medium, preferably, a self adhering tape with an adhesive layer on one side of an ablative layer and a confinement medium withou ...


3
Stephen J Ferrigno, William D Cowie, Seetharamaiah Mannava: Laser shock peening for gas turbine engine weld repair. General Electric Company, Andrew C Hess, David L Narciso, December 8, 1998: US05846057 (47 worldwide citation)

A crack weld repair and method, particularly, for a gas turbine engine blade or other metallic component in the engine, providing a metallic substrate, a metallic filler bonded onto a substrate bond surface on the metallic substrate, and a region having deep compressive residual stresses imparted by ...


4
Bangalore A Nagaraj, Seetharamaiah Mannava, Bhupendra K Gupta: Method for repairing a thermal barrier coating. General Electric Company, Andrew C Hess, David L Narciso, March 3, 1998: US05723078 (47 worldwide citation)

A method of repairing a thermal barrier coating on an article designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for the repair of thermal barrier coatings composed of a metallic bond layer ...


5
Seetharamaiah Mannava, Albert E McDaniel, William D Cowie, Herbert Halila, James E Rhoda, James E Gutknecht: Laser shock peened gas turbine engine fan blade edges. General Electric Company, Andrew C Hess, Nathan D Herkamp, January 7, 1997: US05591009 (45 worldwide citation)

Gas turbine engine fan blade with a metallic airfoil having a leading edge, a trailing edge, and a radially outer tip, and at least one laser shock peened surface located along the leading edge with a region having deep compressive residual stresses imparted by laser shock peening (LSP) extending in ...


6
Seetharamaiah Mannava: On the fly laser shock peening. General Electric Company, Andrew C Hess, Nathan D Herkamp, May 26, 1998: US05756965 (42 worldwide citation)

An on the fly method of laser shock peening a gas turbine engine part by continuously moving a metallic gas turbine engine part while continuously firing a stationary laser beam, which repeatably pulses between relatively constant periods, on a portion of the part with sufficient power to vaporize m ...


7
Seetharamaiah Mannava, Albert E McDaniel, William D Cowie: Laser shock peened rotor components for turbomachinery. General Electric Company, Andrew C Hess, David L Narciso, February 20, 1996: US05492447 (42 worldwide citation)

Turbomachinery rotor components having a metallic body with at least a portion of the body subject to a tensile stress field due to centrifugal and thermal growth induced forces generated by the rotor when the rotor is rotating, at least one stress riser in the stress field portion that causes stres ...


8
Seetharamaiah Mannava, William D Cowie, Stephen J Ferrigno: Laser shock peening surface enhancement for gas turbine engine high strength rotor alloy repair. General Electric Company, Andrew C Hess, David L Narciso, June 11, 1996: US05525429 (40 worldwide citation)

A metallic article and method for producing such an article, having a metallic substrate, at least one metallic layer sprayed onto a laser shock peened surface area of the substrate, and a region having deep compressive residual stresses imparted by laser shock peening extending into the substrate f ...


9
Seetharamaiah Mannava, Angel L Ortiz Jr, Robert L Yeaton, Albert E McDaniel, Jeffrey D Losey: Adhesive tape covered laser shock peening. General Electric Company, Andrew C Hess, Nathan D Herkamp, October 7, 1997: US05674329 (39 worldwide citation)

A method of laser shock peening a metallic part by firing a laser on a laser shock peening surface of the part which has been adhesively covered by tape having an ablative medium, preferably a self adhering tape with an adhesive layer on one side of an ablative layer, while flowing a curtain of wate ...


10
Seetharamaiah Mannava, William D Cowie: Technique to prevent or divert cracks. General Electric Company, Andrew C Hess, Nathan D Herkamp, October 29, 1996: US05569018 (38 worldwide citation)

Gas turbine engine static component with a metallic panel section, either linear or curved, that is susceptible to cracks initiated by features on the component has an elongated laser shock peened region having deep compressive residual stresses imparted by laser shock peening (LSP) disposed between ...