Wire electric-discharge machine

Details Wire electric-discharge machine Wire electric-discharge machine

1998-08-27

2000-11-21

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 710

Patent

active

061506265

ABSTRACT:
In a wire electric-discharge machine, a lower wire guide holder is formed in the shape of a disk, and an electrical supply die is disposed immediately therebelow. Further, the electrical supply die is provided with a shaft and a knob, the shaft is positioned by a supporting block and is fixed by a bolt. A jet nozzle is disposed above an upper nozzle via a spring, and an upper wire guide holder is provided inside the jet nozzle. Further, an upper guide and a lower guide are each provided with a passage formed by an insulating material and adapted to supply a coolant separately from a passage for a working fluid. Further, the lower guide is provided with a negative-pressure generating device, a tip of a lower nozzle is made flat, and a net is provided inside the lower nozzle. In addition, an inclined nozzle is provided in a jetting port of the lower nozzle.

REFERENCES:
patent: 4539459 (1985-09-01), Yamagata
patent: 4896013 (1990-01-01), Fricke et al.
patent: 4994643 (1991-02-01), Truty et al.
patent: 5126524 (1992-06-01), Moro et al.
patent: 5268552 (1993-12-01), Onzuka et al.
patent: 5380973 (1995-01-01), Truty et al.

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