MACHINING METHOD OF COMPOSITE ELECTRICAL MACHINE

MACHINING METHOD OF COMPOSITE ELECTRICAL MACHINE

PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotor blade via an electrolytic discharge for accelerating an efficient manufacture of a small batch with a reduced complexity. SOLUTION: A pre-form 10 includes an airfoil stub 14 and a dovetail hub 16. The hub 16 is subjected to electroly...

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Bibliographische Detailangaben
Hauptverfasser: WEI BIN, ROGINSKI THOMAS WALTER, JANSSEN JONATHAN SEBASTIAN, DALE DAN STEWART, LAMPHERE MICHAEL S, WESSELS JEFFREY F
Format: Patent
Sprache:eng
Schlagworte:
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotor blade via an electrolytic discharge for accelerating an efficient manufacture of a small batch with a reduced complexity. SOLUTION: A pre-form 10 includes an airfoil stub 14 and a dovetail hub 16. The hub 16 is subjected to electrolytic discharge machining first to thereby form a rough dovetail 32. The airfoil stub 14 is subjected to electrolytic machining to thereby form an airfoil 18. Subsequently, the rough dovetail 32 is subjected to electrolytic machining to thereby form a rough tongue-like part 34. The rough tongue-like part 34 is subjected to finish-machining, to thereby form a dovetail 20 extending from the airfoil 18 in a single rotor blade 12. COPYRIGHT: (C)2009,JPO&INPIT