Title:
ELECTRODE FOR ELECTRIC DISCHARGE MACHINING
Document Type and Number:
WIPO Patent Application WO/2012/053486
Kind Code:
A1
Abstract:
In electric discharge machining in which a Cu(Ag)-W(Mo) based electrode is employed, the present invention improves the machining speed, electrode wear rate, and surface roughness of an object to be machined. For this purpose, suitable amounts of an iron-group metal and a boric oxide of an element selected from the group (M3) comprising Mg, Ca, Sr, Ba, Sc, Y, and lanthanide are added to a Cu(Ag)-W(Mo) based material. For the boric oxide, a boric oxide represented by M32B2O5 or M3B2O4 is preferably used.
Inventors:
YAMAGUCHI HIROFUMI (JP)
UCHIDA YUUSUKE (JP)
UCHIDA YUUSUKE (JP)
Application Number:
PCT/JP2011/073855
Publication Date:
April 26, 2012
Filing Date:
October 17, 2011
Export Citation:
Assignee:
NIPPON TUNGSTEN (JP)
YAMAGUCHI HIROFUMI (JP)
UCHIDA YUUSUKE (JP)
YAMAGUCHI HIROFUMI (JP)
UCHIDA YUUSUKE (JP)
International Classes:
B23H1/06; C22C27/04; C22C32/00; C22C1/04
Foreign References:
| JP2006315134A | 2006-11-24 | |||
| JPH10280082A | 1998-10-20 | |||
| JP2004358623A | 2004-12-24 | |||
| JP2005342869A | 2005-12-15 | |||
| JPS5184497A | 1976-07-23 | |||
| JPS5184496A | 1976-07-23 | |||
| JPS5222197A | 1977-02-19 | |||
| JPS513497A | 1976-01-12 |
Attorney, Agent or Firm:
OKUDA SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
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Claims: