Thomas F Broderick

US Patent:

6468367, Oct 22, 2002

Filed:

Dec 27, 1999

Appl. No.:

09/472917

Inventors:

Charles Gitahi Mukira - Clifton Park NY
Melvin Robert Jackson - Niskayuna NY
Jon Conrad Schaeffer - Simpsonville SC
William Scott Walston - Mason OH
Thomas Froats Broderick - Springboro OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

C22C 1905

US Classification:

148428, 420445

Abstract:

A superalloy weld composition, includes: about 2 to about 5 wt % Co; about 5 to about 15 wt % Cr; about 7 to about 10 wt % Al; about 4 to about 6 wt % Ta; about 0. 5 to about 1. 5 wt % Si; about 0. 1 to about 0. 5 wt % Hf; up to about 0. 05 wt % C; up to about 0. 05 wt % B; about 1. 0 to about 2. 0 Re; about 3 to about 4. 5 wt % W; and balance Ni.

US Patent:

6527165, Mar 4, 2003

Filed:

Mar 24, 2000

Appl. No.:

09/535915

Inventors:

David E. Budinger - Loveland OH
Todd S. Heffron - Hamilton OH
John P. Heyward - Loveland OH
Roger D. Wustman - Loveland OH
Gregory A. White - Cincinnati OH
Thomas F. Broderick - Springboro OH
Joshua L. Miller - West Chester OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

B23K 3112

US Classification:

228226, 228182

Abstract:

A method is provided for making, from a plurality of members brazed together, an article including an environmental resistant surface coating and a wear resistant surface portion. Prior to brazing, the members are assembled with at least one preform including the wear resistant material in a matrix including a first brazing alloy having a brazing temperature in a brazing temperature range. The assembly of members includes a second brazing alloy having a brazing temperature in the brazing temperature range. The assembly of members and wear resistant preform is heated in the brazing temperature range to provide a brazed article preform. Then the article preform is machined to a selected geometry and can be coated with the environmental coating.

US Patent:

6814818, Nov 9, 2004

Filed:

Oct 30, 2002

Appl. No.:

10/286241

Inventors:

Andrew Philip Woodfield - Madeira OH
Thomas Froats Broderick - Springboro OH
Reed Roeder Corderman - Niskayuna NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

C22C 1400

US Classification:

148501, 148669

Abstract:

A method for heat treating titanium-alloy articles in a vacuum furnace includes a step of first determining, for a first set of titanium articles in a first vacuum furnace and for a first set of heat treatment conditions, a minimum surface area of the first set of titanium articles associated with an acceptable alpha case formation for the first set of titanium articles. There is a second determining, for a second set of titanium articles in a second vacuum furnace and for a second set of heat treatment conditions, of a minimum surface area of a second set of titanium articles associated with an acceptable alpha case formation for the second set of titanium articles, responsive to the value of the minimum surface area of the first set of titanium articles. There follows a heat treating of a third set of titanium articles in the second vacuum furnace and for the second set of heat treatment conditions, where the surface area of the third set of titanium articles is not less than the value of the minimum surface area of the second set of titanium articles.

US Patent:

7097720, Aug 29, 2006

Filed:

Apr 30, 2003

Appl. No.:

10/426816

Inventors:

Seetha Ramaiah Mannava - Cincinnati OH, US
Todd Jay Rockstroh - Maineville OH, US
William Woodrow Shepherd - West Chester OH, US
Ian Francis Prentice - Cincinnati OH, US
Thomas Froats Broderick - Springboro OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

C21D 1/04
C21D 1/09
C21D 1/10

US Classification:

148565, 2191216, 21912161, 21912185, 416241 R

Abstract:

A method for laser shock peening an article including laser shock peening a first area with at least one high fluence laser beam and laser shock peening a border area between the first area and a non-laser shock peened area of the article with at least one first low fluence laser beam. The border area may be laser shock peened with a second low fluence laser beam or more low fluence laser beams wherein the second low fluence laser beam and others have a lower fluence than the first low fluence laser beam. The border area may be laser shock peened with progressively lower fluence laser beams starting with the one first fluence laser beam wherein the progressively lower fluence laser beams are in order of greatest fluence to least fluence in a direction outwardly from the first area through the border area to the non-laser shock peened area.

US Patent:

7198684, Apr 3, 2007

Filed:

Mar 14, 2003

Appl. No.:

10/388671

Inventors:

Thomas Froats Broderick - Springboro OH, US
Jeffrey Lynn Myers - West Chester OH, US
Francois Laurent Giguere - Granby, CA
Peter Brian Haley - Bow NH, US
Paul Raymond Phaneuf - Manchester NH, US
William Francis Bergeron - Hooksett NH, US
Thomas Caudwell Straub - Harnstead NH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

C21D 8/00

US Classification:

148677, 148676, 148556, 148559, 266103

Abstract:

A plurality of gas turbine components or other articles are manufactured from a plurality of metallic-alloy workpieces using a manufacturing apparatus having a metalworking apparatus, and an annealing apparatus wherein the individual workpieces are annealed by single-workpiece annealing and not by large-batch annealing. A workpiece flow of the plurality of workpieces is established sequentially through the metalworking apparatus and the annealing apparatus.

US Patent:

7229253, Jun 12, 2007

Filed:

Nov 30, 2004

Appl. No.:

10/999505

Inventors:

Thomas F. Broderick - Springboro OH, US
Andrew P. Woodfield - Highland Heights KY, US
Dale Robert Lombardo - Blueash OH, US
Paul Robert Moncelle - Cincinnati OH, US
William Terrence Dingwell - Lebanon OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 5/14

US Classification:

416225, 415235

Abstract:

A metallic component is by at least one peripheral edge. The component includes at least one elongated treated zone having a length substantially greater than its width. This treated zone is spaced away from and disposed generally parallel to the peripheral edge of the component and the entire thickness of the component within the treated zone is in a state of residual compressive stress. Crack growth from the edge due to fatigue or damage is resisted.

US Patent:

7249412, Jul 31, 2007

Filed:

May 25, 2004

Appl. No.:

10/853050

Inventors:

Peter Wayte - Maineville OH, US
Thomas Froats Broderick - Springboro OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B23P 6/00
B23K 9/04

US Classification:

298891, 2940213, 2940216, 2940218

Abstract:

A BLISK having a damaged blade, with a repair region that has a thickness less than a specified thickness as a result of damage during manufacture or prior service, is repaired by depositing repair metal onto the repair region to increase its thickness to greater than its specified thickness dimension. Only the repair region is stress relieved by heating the repair region to a stress-relieving temperature of from about 1150 F. to about 1250 F. for a time of at least about 1 hour. The intentional manipulation of microstructure in only the thinner airfoil sections allows multiple repairs, which are not possible in the thicker sections of the BLISK. An alpha-case thickness of repair metal, preferably of at least about 0. 0002 inches of repair metal, is removed from a surface of the repair region.

US Patent:

7331755, Feb 19, 2008

Filed:

May 25, 2004

Appl. No.:

10/853609

Inventors:

Thomas Froats Broderick - Springboro OH, US
Ronald Lance Galley - Mason OH, US
Clifford Earl Shamblen - Cincinnati OH, US
David Edwin Budinger - Loveland OH, US
Reed Roy Oliver - Cincinnati OH, US
Roger Owen Barbe - Cincinnati OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 9/00
B23P 15/04

US Classification:

415191, 2988922

Abstract:

A method for assembling a vane sector for a gas turbine engine, the vane sector including an airfoil vane and a platform includes depositing a wear coating material onto a selected area of the platform, positioning the platform adjacent to the airfoil vane, and executing a brazing operation such that the airfoil vane is permanently coupled to the platform portion and such that the wear coating material is bonded across a predefined area of the platform.