Fluid jetstream threading mechanism and method for travelling wi

Details Fluid jetstream threading mechanism and method for travelling wi Fluid jetstream threading mechanism and method for travelling wi

1981-12-21

1985-01-22

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69D, 219 69W, B23P 108

Patent

active

044953933

ABSTRACT:
A method and apparatus for threading or rethreading the end of an electrode wire through an aperture in a workpiece in which a cut is to be effected, by electrical discharges in a machining zone between the electrode wire and the workpiece. While the end of the electrode wire is brought in proximity with the inlet of the aperture in the workpiece, the end of the electrode wire is disposed in a pressurized fluid flowing towards the inlet of the aperture in the workpiece such that the end of the electrode wire is automatically centered relative to the aperture, and threading the end of the wire through the aperture.

REFERENCES:
patent: 3891819 (1975-06-01), Ullmann et al.
patent: 3987270 (1976-10-01), Ullmann et al.

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