Invention Grant
- Patent Title: Compound electromachining
- Patent Title (中): 复合电加工
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Application No.: US11489350Application Date: 2006-07-19
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Publication No.: US08161641B2Publication Date: 2012-04-24
- Inventor: Michael Scott Lamphere , Bin Wei , Thomas Walter Rogenski , Dan Stewart Dale , Jonathan Sebastian Janssen , Jeffrey Francis Wessels
- Applicant: Michael Scott Lamphere , Bin Wei , Thomas Walter Rogenski , Dan Stewart Dale , Jonathan Sebastian Janssen , Jeffrey Francis Wessels
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Trego, Hines & Ladenheim, PLLC
- Agent David J. Clement
- Main IPC: B21D53/78
- IPC: B21D53/78 ; B23P13/04

Abstract:
A preform includes an airfoil stub and a dovetail hub. The hub first undergoes electrochemical discharge machining to form a rough dovetail. The airfoil stub undergoes electrochemical machining to form an airfoil. The rough dovetail then undergoes electrochemical discharge machining to form a rough tang. The rough tang is finish machined to form a dovetail extending from the airfoil in a unitary rotor blade.
Public/Granted literature
- US20080028607A1 Compound electromachining Public/Granted day:2008-02-07
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