Current-conducting assembly for a traveling wire-electrode

Details Current-conducting assembly for a traveling wire-electrode Current-conducting assembly for a traveling wire-electrode

1981-02-13

1983-12-27

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204224M, 204225, 204279, 219 69W, 310231, 310249, 310251, 310253, 339 5R, C25D 1700, B23P 104, B23P 112, H01R 3928

Patent

active

044229186

ABSTRACT:
A current-conductor assembly for conducting a machining current to a wire electrode in a wire-cutting electroerosion machine comprises a pair of coplanar wheels rotatable about their respective shafts and having their respective peripheries for receiving the wire electrode between them. The wheels are urged towards one another to press the wire electrode between the peripheries and a brush connectable electrically to a source of the machining current and adapted to be urged under pressure into electrical contact with a flank of one of the wheels which is electrically conductive for conducting the current to the wire electrode. The brush is an electrically conductive body preferably composed of copper, graphite or a copper/graphits composite material containing a solid-state lubricating material, e.g. MoS.sub.2 or WS.sub.2. The pressing wheel urged towards the conducting wheel is, at least along its peripheral region, composed of an elastomeric material.

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patent: 4347456 (1982-08-01), Chabrerie

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