Current supply device for movable electrodes of spark erosion ma

Details Current supply device for movable electrodes of spark erosion ma Current supply device for movable electrodes of spark erosion ma

1989-02-15

1990-02-13

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

219 6913, B23H 710, B23H 704

Patent

active

049008897

ABSTRACT:
A current supply device for movable electrodes of spark erosion machines comprises a plurality of individual contacts and includes in leads connecting the contacts with a current generator, electrical components in the form of pulse transformers for a pairwise negative feedback of partial currents or additional impedances stepped according to a mathematical series for uniform current distribution over the individual contacts. The current supply device is particularly suitable for the current transmission of high energy short pulses, such as are used for an erosive wire cutting. The current supply device operates in an almost wear-free manner and can also fulfill the function of guide for the electrode.

REFERENCES:
patent: 4575605 (1986-03-01), Martin

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