Title:
ELECTRODE WIRE FOR WIRE ELECTRICAL DISCHARGE MACHINING, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR ELECTRICAL DISCHARGE MACHINING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/096242
Kind Code:
A1
Abstract:
Provided is an electrode wire for high-speed machining which prevents short circuiting between the electrode wire and an object being machined, and not only increases machining speed but also suppresses loss in machining precision and generation of fine lines and metal powder on the machined surface, by preventing granular matter of a copper-zinc diffused alloy formed on the outer peripheral surface of the electrode wire from detaching from a core wire. In a step in which a wire material that has on the outer peripheral surface a copper-zinc alloy layer and a zinc layer produced by thermal diffusion is drawn and reduced to the diameter of a product, the copper-zinc alloy layer is reliably crushed into granular matter and the diffused alloy layer and the zinc layer are integrated with the core wire by embedding the granular matter in the outer peripheral surface of the core wire, and the diffused alloy layer and the zinc layer are therefore prevented from detaching from the core wire. In addition, since cracks in the copper-zinc alloy layer generated in the wire drawing step are covered by a thin zinc film, the wire is drawn at a temperature favorable to the ductility of zinc.
Inventors:
HASHIZUME KOICHI (JP)
YOSHIMOTO MASAKAZU (JP)
WASHIO NOBUYUKI (JP)
KIMOTO YOICHIRO (JP)
SATO HIROSHI (JP)
IZUI ISAO (JP)
YOSHIMOTO MASAKAZU (JP)
WASHIO NOBUYUKI (JP)
KIMOTO YOICHIRO (JP)
SATO HIROSHI (JP)
IZUI ISAO (JP)
Application Number:
PCT/JP2011/050072
Publication Date:
August 11, 2011
Filing Date:
January 06, 2011
Export Citation:
Assignee:
OKI ELECTRIC CABLE (JP)
HASHIZUME KOICHI (JP)
YOSHIMOTO MASAKAZU (JP)
WASHIO NOBUYUKI (JP)
KIMOTO YOICHIRO (JP)
SATO HIROSHI (JP)
IZUI ISAO (JP)
HASHIZUME KOICHI (JP)
YOSHIMOTO MASAKAZU (JP)
WASHIO NOBUYUKI (JP)
KIMOTO YOICHIRO (JP)
SATO HIROSHI (JP)
IZUI ISAO (JP)
International Classes:
B21C1/00; B23H7/08; B21C9/00; H01B5/02
Domestic Patent References:
| WO2009028117A1 | 2009-03-05 | |||
| WO2009028117A1 | 2009-03-05 |
Foreign References:
| JP2008296298A | 2008-12-11 | |||
| JP2005096060A | 2005-04-14 | |||
| JPH09300136A | 1997-11-25 | |||
| JP2008183704A | 2008-08-14 | |||
| JP2008535668A | 2008-09-04 | |||
| JP3718617B2 | 2005-11-24 | |||
| JP2004160655A | 2004-06-10 | |||
| JP2005230992A | 2005-09-02 | |||
| JP3718617B2 | 2005-11-24 |
Other References:
See also references of EP 2532465A4
Attorney, Agent or Firm:
NAKAMURA MAMORU (JP)
Nakamura 守 (JP)
Nakamura 守 (JP)
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Claims: