Method and device for controlling discharging current slope of w

Details Method and device for controlling discharging current slope of w Method and device for controlling discharging current slope of w

1997-06-24

1999-02-16

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6913, 219 6919, B23H 100, B23H 704, B23H 716

Patent

active

058723471

ABSTRACT:
It is a main object of the present invention to improve the drawback of a conventional wire cut EDM which controls the pulse width of discharging current to supply discharge energy under the state of constant current slope. The discharging current slope control method and device of the wire cut electrical discharge machine of the present invention comprises an electrical discharge detecting circuit, a timing controller circuit, a normal discharge driver circuit, an arc discharge driver circuit, normal discharge switch elements and arc discharge switch elements. The slopes of the output triangle waveform currents shall be variable due to the different results of detecting by the electrical discharge detecting circuit, depending on normal discharge or arc discharge condition, to render the current slope of the arc discharge smaller than the current slope of the normal discharge, so as to achieve the effect of keeping a high machining speed without easily breaking of the wire electrode.

REFERENCES:
patent: 4376880 (1983-03-01), Inoue
patent: 4767905 (1988-08-01), Inoue
patent: 4800248 (1989-01-01), Futamura et al.
patent: 4967054 (1990-10-01), Obara et al.
patent: 5187341 (1993-02-01), Graell

Affiliated with

Also associated with

Rating

Method and device for controlling discharging current slope of w does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for controlling discharging current slope of w, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for controlling discharging current slope of w will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2064349