Andrew L Trimmer

US Patent:

7741576, Jun 22, 2010

Filed:

May 11, 2007

Appl. No.:

11/747281

Inventors:

Andrew Lee Trimmer - Latham NY, US
Bin Wei - Mechanicville NY, US
Michael Scott Lamphere - Hooksett NH, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

B23H 5/00
B23H 5/02
B23H 5/04
B23H 5/06
B23H 9/10

US Classification:

219 6917, 204224 M, 205662, 205663, 219 692

Abstract:

An apparatus and method for hybrid machining a workpiece is disclosed. The apparatus includes a mandrel for supporting the workpiece adjacent a cutter mounted on an arbor. A workpiece is powered as an anode and the cutter is powered as a cathode, and a cutting fluid or coolant is circulated therebetween. The cutter is made of a conductive material and a non-conductive abrasive material to maximize the amount of material removed from the workpiece. The coolant includes one or more additives to enhance the electrical discharge between the cutter and the workpiece. The cutter is moved relative to the workpiece to remove material from the workpiece at a predetermined depth of cut using an enhanced high-speed electro-erosion (HSEE) process in which both HSEE and abrasive machining processes are used. The workpiece may then be finish machined to a final shape of the titanium article, such as a dovetail of a turbine blade.

US Patent:

7976694, Jul 12, 2011

Filed:

Jul 17, 2007

Appl. No.:

11/779066

Inventors:

Andrew Lee Trimmer - Latham NY, US
Nicholas Joseph Kray - Blue Ash OH, US
Joshua Leigh Miller - West Chester OH, US
Michael Scott Lamphere - Hooksett NH, US
Bin Wei - Mechanicville NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

B23H 5/06
B23H 9/10

US Classification:

205662, 205663, 219 6917

Abstract:

An apparatus and method for hybrid machining a workpiece is disclosed. The workpiece is powered as an anode, a cutter is powered as a cathode and a cutting fluid or coolant is circulated therebetween. The cutter is made of a conductive material and a non-conductive abrasive material. The hybrid machine performs a roughing pass machining operation in which material is removed from the workpiece at a relatively high rate using a high-speed electro-erosion (HSEE) process. Then, the hybrid machine performs a finish pass machining operation in which material is removed from the workpiece using precision electro-grinding (PEG) process at a different differential electrical potential and/or flushing rate than the roughing pass machining operation to provide a smooth finish without thermal effects on the workpiece.

US Patent:

20070269015, Nov 22, 2007

Filed:

May 18, 2006

Appl. No.:

11/419078

Inventors:

Thomas Raber - Schenectady NY, US
Bernard Bewlay - Schenectady NY, US
Andrew Trimmer - Latham NY, US
Bin Wei - Mechanicville NY, US
Colin Wilson - Niskayuna NY, US
Mark Benz - Lincoln VT, US
Ernest Balch - Ballston Spa NY, US

International Classification:

H01J 35/10

US Classification:

378144000

Abstract:

A focal track region of an x-ray anode in an example is electrochemically etched. In a further example, an x-ray anode comprises a thermally-compliant focal track region for impingement of electrons from an x-ray cathode to create an x-ray source. The thermally-compliant focal track region comprises a pattern of discrete relative expanses and gaps.

US Patent:

20080253922, Oct 16, 2008

Filed:

Apr 13, 2007

Appl. No.:

11/786996

Inventors:

Andrew Lee Trimmer - Latham NY, US
Bin Wei - Mechanicville NY, US
Joshua Leigh Miller - West Chester OH, US
Nicholas Joseph Kray - Cincinnati OH, US
Michael Scott Lamphere - Hooksett NH, US

International Classification:

C22C 14/00
B23H 3/00
C22C 19/05

US Classification:

420419, 205640, 205674, 420445

Abstract:

A method for surface roughening a metal work piece includes disposing the work piece proximate to a counter electrode. The work piece and the counter electrode are disposed in an electrolyte. An electric potential with current flow is applied between the work piece and the counter electrode to roughen the metal surface to a desired roughness.

US Patent:

20080264897, Oct 30, 2008

Filed:

Apr 30, 2007

Appl. No.:

11/796800

Inventors:

Canan Uslu Hardwicke - Simpsonville SC, US
Andrew Lee Trimmer - Latham NY, US
Bin Wei - Mechanicville NY, US
Tamara Jean Kluge - Rexford NY, US

International Classification:

C23F 1/00
C25F 3/02

US Classification:

216 11, 205666

Abstract:

A method of forming a pattern comprising a plurality of recesses within a turbine component is disclosed. The method includes simultaneously dissolving a plurality of portions of a selected section of the turbine component, thereby defining the plurality of recesses of the pattern.

US Patent:

20100126877, May 27, 2010

Filed:

Nov 24, 2008

Appl. No.:

12/276499

Inventors:

Yuanfeng Luo - Shanghai, CN
Bin Wei - Mechanicville NY, US
Steven Robert Hayashi - Niskayuna NY, US
Andrew Lee Trimmer - Latham NY, US
Jian Wu - Freemont CA, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

C25F 3/02
C25F 7/00

US Classification:

205686, 252512, 204225, 252513

Abstract:

An electrochemical grinding electrode comprises an electrically conductive material; an arc resistance material; and an abrasive material different from the arc resistance material. An electrochemical grinding apparatus and a method are also presented.

US Patent:

20110073486, Mar 31, 2011

Filed:

Sep 30, 2009

Appl. No.:

12/570818

Inventors:

Andrew Lee Trimmer - Latham NY, US
Luana Emiliana Iorio - Clifton Park NY, US
Pazhayannur Ramanathan Subramanian - Niskayuna NY, US
Francis Johnson - Clifton Park NY, US

Assignee:

GENERAL ELECTRIC COMPANY - SCHENECTADY NY

International Classification:

B23H 3/00

US Classification:

205682, 205640

Abstract:

A method for altering a dimension of an element made of an amorphous metallic material is provided. The method includes providing an anode comprising the amorphous metallic material, wherein the amorphous metallic material comprises at least two primary constituents, providing a cathode disposed in a spaced-apart relationship with the anode, providing an electrolyte in contact with the anode and the cathode, and applying an electrical potential between the anode and the cathode.

US Patent:

20110262771, Oct 27, 2011

Filed:

Jun 30, 2011

Appl. No.:

13/173476

Inventors:

Andrew Lee Trimmer - Niskayuna NY, US
Bin Wei - Mechanicville NY, US
Joshua Leigh Miller - West Chester OH, US
Nicholas Joseph Kray - Mason OH, US
Michael Scott Lamphere - Hooksett NH, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

B23P 9/00
B32B 38/00
C25F 3/02

US Classification:

428687, 205640, 156281

Abstract:

A method for surface roughening a metal work piece includes disposing a region of the workpiece to be roughened proximate to a counter electrode. The region of the workpiece to be roughened and the counter electrode are subsequently disposed together in an electrolyte. An electric potential with current flow is applied between the work piece and the counter electrode to roughen the metal surface to a desired roughness.