Electrical discharge machine with prevention of pulse crack phen

Details Electrical discharge machine with prevention of pulse crack phen Electrical discharge machine with prevention of pulse crack phen

1994-06-30

1996-12-03

Walberg, Teresa J.

Electric heating

Metal heating

Cutting or disintegrating

219 6913, B23H 102

Patent

active

055804691

ABSTRACT:
An electrical discharge machine for machining a workpiece with the application of a voltage to a machining gap formed between an electrode and the workpiece which has a direct-current power supply for supplying a machining current and a current limiting device connected in series with the direct-current power supply for limiting the machining current. A switching device is connected in series with the direct-current power supply and current limiting device and is operative to provide a voltage to the machining gap and to form a direct-current pulse. A series circuit of an inductance and a capacitor is provided in parallel with the machining gap. The purpose of the series circuit is either for suppressing the interruption of a direct-current pulse current component which follows a capacitor discharge current component, whereby the occurrence of a pulse crack phenomenon can be prevented or for suppressing the continuation of a direct-current pulse current component, particularly pulses, which follows a capacitor discharge current component. Depending on whether or not the finish is to be of mirror quality, values of capacitance and inductance for the series circuit can be chosen within specified ranges.

REFERENCES:
patent: 2895080 (1959-07-01), Branker
patent: 3054931 (1962-09-01), Inoue
patent: 3536881 (1970-10-01), Inoue
patent: 3539755 (1970-11-01), Inoue
patent: 3624338 (1971-11-01), Ellis
patent: 4347424 (1982-08-01), Obara
patent: 5126525 (1992-06-01), Kaneko et al.
patent: 5374798 (1994-12-01), Kinbara

Affiliated with

Also associated with

Rating

Electrical discharge machine with prevention of pulse crack phen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical discharge machine with prevention of pulse crack phen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical discharge machine with prevention of pulse crack phen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-782552