Electric heating – Metal heating – Cutting or disintegrating
Reexamination Certificate
2006-03-28
2006-03-28
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
Cutting or disintegrating
C700S162000
Reexamination Certificate
active
07019246
ABSTRACT:
A discharge pulse number generated between a wire electrode and a workpiece is counted every predetermined time. A ratio Px/Ps of this counted value Px to the reference pulse number Ps will be determined to control an amount of coolant in response to this ratio Px/Ps. Also, in response to this ratio Px/Ps, an amount of movement within predetermined time is controlled. Further, through the ratio Px/Ps and the like, quiescent time to be controlled by the detection voltage generator is controlled. Thereby, surplus supply of energy is prevented, the machining speed and machining precision is improved and any disconnection of the wire electrode is avoided.
REFERENCES:
patent: 3705286 (1972-12-01), Kondo et al.
patent: 3999028 (1976-12-01), Saito et al.
patent: 4081652 (1978-03-01), Jänicke et al.
patent: 4335436 (1982-06-01), Inoue
patent: 4709131 (1987-11-01), Del Bello et al.
patent: 5233147 (1993-08-01), Magara
patent: 5756954 (1998-05-01), Kamiguchi et al.
patent: 5756956 (1998-05-01), Sato et al.
patent: 5841093 (1998-11-01), Wada
patent: 6208150 (2001-03-01), Akamatsu
patent: 6278075 (2001-08-01), Kamiguchi et al.
patent: 0 934 791 (2001-08-01), None
patent: 11-151620 (1999-06-01), None
patent: WO/ 89/07503 (1989-08-01), None
European Search Report dated Nov. 13, 2003 for related appliation EP 01310631.
Brink, Dean, “EDM: Principles of Operation”.
Jack, Hubh, “58. Electric Discharge Machining (EDM)”, Aug. 31, 2001.
Hiraga Kaoru
Kurihara Masaki
Evans Geoffrey S.
FANUC LTD
Staas & Halsey , LLP
LandOfFree
Controller for wire electric discharge machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controller for wire electric discharge machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controller for wire electric discharge machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3527335