Michael R Rucker

US Patent:

8636890, Jan 28, 2014

Filed:

Sep 23, 2011

Appl. No.:

13/242548

Inventors:

Nicholas Shawn Woodard - Monroe OH, US
Michael H. Rucker - Loveland OH, US
John Louis Cupito - Loveland OH, US
Albert King - Milan IN, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

C25D 17/00
C25D 5/02
C25D 5/34
C25D 7/00
B23P 6/00
C25D 17/12
F01D 5/00
C23C 10/02
C23C 10/58
C25D 3/50
F01D 5/28

US Classification:

205115

Abstract:

A method of repairing damaged airfoils. The method comprises the steps of stripping thermal barrier coatings from the airfoil. After the coatings are removed, cracks are removed from the airfoil. Cracks that appear in the bond coat area over the airfoil fillet portion are removed by locally grit blasting the fillet portion of the airfoil. This operation also results in locally removing the bond coating from the fillet portion. Cracks and other damage sustained by the airfoil tip are removed and replaced by welding superalloy material. The airfoil then may be cleaned by thermal etching. The airfoil is then placed in a plating tool permitting preferential plating of airfoil areas from which plating has been removed. After plating, the airfoil is then heat treated to diffuse the platinum coating with the superalloy substrate materials. The diffusion heat treated airfoil is aluminided by any aluminiding process, forming a PtAl coating.

US Patent:

20060042932, Mar 2, 2006

Filed:

Aug 25, 2004

Appl. No.:

10/925649

Inventors:

Mark Rosenzweig - Hamilton OH, US
Michael Rucker - Cincinnati OH, US
John Evans - Springfield OH, US

International Classification:

B23H 3/02
C25D 21/12

US Classification:

204230200, 204228100, 204229400

Abstract:

Apparatus for electroplating a workpiece includes a primary electroplating anode, an auxiliary electroplating anode, and a resistor. The resistor is electrically connected in series to one of the primary and auxiliary electroplating anodes. The primary and auxiliary electroplating anodes are electrically connectable in parallel to an electrolyte. A method for electroplating a workpiece includes obtaining an electrolyte, a primary electroplating anode, and an auxiliary electroplating anode. The workpiece and the primary and auxiliary electroplating anodes are positioned in contact with the electrolyte. Electric current is applied through the primary electroplating anode at a first amperage and through the auxiliary electroplating anode at a different second amperage.

US Patent:

20060216540, Sep 28, 2006

Filed:

Mar 24, 2005

Appl. No.:

10/907218

Inventors:

David Budinger - Loveland OH, US
Richard Schmidt - Marblehead MA, US
Mark Veliz - Mason OH, US
Michael Rucker - Cincinnati OH, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

C22C 1/05
B32B 15/01

US Classification:

428680000, 075255000

Abstract:

A nickel-base braze material suitable for closing holes in a high temperature component, such as a tip cap hole in a turbine blade. The braze material comprises first and second filler materials and a binder. The first filler material comprises particles of a first alloy, and the second filler material comprises particles of at least a second alloy having a lower melting temperature than the first alloy. The second alloy consists essentially of, by weight, about 8 to about 23 percent chromium, about 4 to about 18 percent cobalt, about 1.5 to about 6.0 percent tantalum, about 1.0 to about 6.0 percent aluminum, about 0.3 to about 1.5 percent boron, about 2.0 to about 6.0 percent silicon, up to 0.2 percent carbon, the balance being nickel and incidental impurities.