Wire electric discharge machining apparatus

Details Wire electric discharge machining apparatus Wire electric discharge machining apparatus

2005-02-15

2005-02-15

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

Cutting or disintegrating

Reexamination Certificate

active

06855904

ABSTRACT:
A wire electric discharge machining apparatus having a structure for supplying power to a wire electrode which prolongs the life of a power supply element and reduces manufacturing and running costs. A guide roller is driven by a small motor through a lead screw and guides the wire electrode above and/or below the power supply element, formed as a flat plate and driven in an oscillating direction perpendicular to a running direction of the wire electrode and parallel to a flat surface of the power supply element. A contact position of the wire electrode on the power supply element is varied over an area of a wide range, avoiding creation of a groove or the like, attributable to friction, in the power supply element and extending the life thereof.

REFERENCES:
patent: 4733038 (1988-03-01), Girardin
patent: 5268552 (1993-12-01), Onzuka et al.
patent: 5384444 (1995-01-01), Truty et al.
patent: 61-182731 (1986-08-01), None
patent: 63-221926 (1988-09-01), None
patent: 4-93117 (1992-03-01), None
patent: 4-42420 (1993-02-01), None
patent: 5-92320 (1993-04-01), None
patent: 8-019920 (1996-01-01), None
patent: 8-141845 (1996-06-01), None
patent: 2001-232520 (2001-08-01), None
Patent Abstracts of Japan of Publication No. 62152618 published Jul. 7, 1987.

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