EDM method and apparatus with trapezoidized short-duration pulse

Details EDM method and apparatus with trapezoidized short-duration pulse EDM method and apparatus with trapezoidized short-duration pulse

1986-09-10

1988-08-30

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, B23H 102, B23H 302

Patent

active

047679050

ABSTRACT:
An EDM method and system in which a DC output is pulsed to produce a succession of discrete, time-spaced, essentially unidirectional current pulses of a short duration not in excess of 10 microseconds for finish-machining a workpiece with a tool electrode across a fluid flooded EDM gap, each of the discrete current pulses having an essentially half-cycle sinusoidally rising and falling current-time characteristic and a peak current in excess of a predetermined current level. According to the invention, a peak current portion of each of the current pulses beyond the predetermined level is clipped to produce a reformed gap current pulse which is substantially square- or trapezoid-edged and has the predetermined current level.

REFERENCES:
patent: 3655937 (1972-04-01), Ullmann et al.
patent: 3676708 (1972-07-01), Uchida
patent: 3974357 (1976-08-01), Saito et al.
patent: 4064407 (1977-12-01), Kelleher
patent: 4382168 (1983-05-01), Inoue

Affiliated with

Also associated with

Rating

EDM method and apparatus with trapezoidized short-duration pulse does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with EDM method and apparatus with trapezoidized short-duration pulse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EDM method and apparatus with trapezoidized short-duration pulse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2089736