Electric heating – Metal heating – Cutting or disintegrating
Patent
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
Dubno Herbert
Inoue-Japax Research Incorporated
Paschall M. H.
Ross Karl F.
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