Method of and device for conducting machining current to a wire-

Details Method of and device for conducting machining current to a wire- Method of and device for conducting machining current to a wire-

1981-05-28

1984-03-20

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 310229, 339 5R, 339 5A, B23P 110, B23P 112

Patent

active

044383126

ABSTRACT:
A device for conducting a machining current to a traveling wire-electrode tool in a wire-cutting electroerosion machine comprises a rotary brush block (e.g. of cylindrical shape) having a planar current-conducting surface disposed in a wire-travel path for making sliding electrical contact with the moving wire-electrode tool. A motor rotates the brush block about the rotary axis thereof to rotationally move the current-conducting surface in tangential sliding electrical contact with the moving wire-electrode tool. A scraper is provided downstream of the workpiece machining zone and upstream of the brush block to remove abrasive particles and machining chips and other products (e.g. tar) adherent on the wire tool fed from the machining zone, thus to prevent them from being carried onto the brush surface.

REFERENCES:
patent: 3098148 (1963-07-01), Piot et al.
patent: 3835436 (1974-09-01), Klaudy
patent: 3855441 (1974-12-01), Kimmelmann
patent: 4193852 (1980-03-01), Inoue

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