Electric discharge machining apparatus

Details Electric discharge machining apparatus Electric discharge machining apparatus

2005-04-19

2005-04-19

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

Cutting or disintegrating

Reexamination Certificate

active

06881918

ABSTRACT:
An electric discharge machining apparatus has improved responsive drivability and improved machining speed. A tool electrode has a tip end directed toward a work piece, a voltage applied between the tool electrode and the work piece generating a discharge. A drive shaft is connected with the tool electrode. An electrode driving device has magnetic bearings for moving the drive shaft in three directions, including a Z-axis direction, which is an axial direction of the drive shaft, a Y-axis direction perpendicularly crossing the Z-axis direction, and an X-axis direction perpendicularly crossing the Y-axis direction and Z-axis direction, by supplying electric current to electromagnetic portions to control magnetic attraction. A movable coupling is connected with an end of the drive shaft and is movable in the three directions. An electric motor is connected with an end of the coupling for rotating the drive shaft through the coupling.

REFERENCES:
patent: 2385665 (1945-09-01), Warwick
patent: 6788019 (2004-09-01), Imai et al.
patent: 20030019844 (2003-01-01), Shih
patent: 20030080094 (2003-05-01), Imai et al.
patent: 1-234162 (1989-09-01), None
patent: 2000-218442 (2000-08-01), None
patent: WO-02024389 (2002-03-01), None
“Magnetic Levitation and Magnetic Bearing,”Electric Institute, Magnetic Levitation Application Technology Research Expert Committee Edition.

Affiliated with

Also associated with

Rating

Electric discharge machining apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric discharge machining apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric discharge machining apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3420604