Method and apparatus for threading an electrode wire through an

Details Method and apparatus for threading an electrode wire through an Method and apparatus for threading an electrode wire through an

1981-11-06

1984-08-14

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, B23P 108

Patent

active

044659156

ABSTRACT:
A method and apparatus for threading the electrode wire of a trailing wire EDM apparatus through a starter hole or aperture in the workpiece or through the machined slot, the workpiece being submerged in a machining fluid. A chamber is disposed in contact with the workpiece under the workpiece, the chamber being in communication with an end of the aperture through the workpiece. The chamber is connected to a source of suction, with the result that fluid being sucked through the aperture in the workpiece converges towards the inlet of the aperture and guides the end of the electrode wire into the inlet of the aperture.

REFERENCES:
patent: 3891819 (1975-06-01), Ullmann et al.
patent: 4069961 (1978-01-01), Nicklaus et al.

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