C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 32/00 (2006.01) B22F 1/00 (2006.01) B23H 1/06 (2006.01) C22C 1/04 (2006.01) C22C 1/05 (2006.01) C22C 9/00 (2006.01) C22C 27/04 (2006.01)
Patent
CA 2500351
A W-Cu alloy based electrode material for use in electric discharge machining consisting of 40 wt % or more of W (1), 15 wt % or less of an additive element or its compound (3) and the balanced amount of Cu (2), characterized in that it contains, as the additive element or its compound(3), 10 wt % or less of at least one of alkali metal elements, alkaline earth metal elements, rare earth elements, and oxides, hydroxides, nitrides, borides and sulfides of these elements, and in that particles of such an element or compound present in the material has an average particle diameter of less than 3 µm or less or the particles are present with an average distance between them of 20 µm or less. 30 % or more of W (1) particles preferably have a particle diameter of 1 µm or less. The material may further contain 10 wt % or less of Ni. The above electrode material exhibits a reduced consumption of electrode and an enhanced machining rate as compared to conventional materials, and is excellent in electric discharge machining characteristics.
L'invention porte sur une électrode d'alliage de W-Cu pour machine d'usinage par étincelage comportant: 40 % ou plus en poids de W (1); 15 % ou moins en poids d'un additif ou de ses composés (3) et le reliquat de Cu. Ledit additif comprend 10 % ou moins en poids d'éléments de métal alcalin, alcalino-terreux ou de terres rares, et leurs oxydes, hydroxydes, nitrures, borures, et sulfures, et les particules desdits éléments ou composés présentent un diamètre de 3 µm ou moins ou une distance entre particules de 20 µm ou moins. Par ailleurs 30 % des particules de W (1) présentent de préférence un diamètre de 1µm ou moins. L'alliage, qui comporte en outre 10 % ou moins en poids de Ni, permet de réduire la consommation d'électrode et d'accroître la vitesse d'usinage par rapport aux électrodes usuelles, et présente d'excellentes caractéristiques en matière d'usinage par étincelage.
Goma Norihito
Kamiya Kiyohito
Katougi Hidetaka
Uenishi Noboru
G. Ronald Bell & Associates
Sumitomo Electric Industries Ltd.
LandOfFree
Electrode material for electric discharge machining and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrode material for electric discharge machining and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode material for electric discharge machining and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1859669