Electrical discharge machining device and electrical discharge machining method
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
Apr 25, 1997
filing date -
Sep 22, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrical discharges machining device which machines a workpiece by electrical discharge and imparts to the workpiece a curved profile and a straight profile connected to the curved profile, and which includes a wire electrode and a wire forming device, and which forms a concave channel in the wire electrode in the axial direction of that wire electrode. A conductive wire guide is provided having a curved edge and a straight edge connected to the curved edge. The wire electrode is fit onto the curved edge and the straight edge, and caused to travel along the wire guide edge. The wire guide is connected to the power supply, and also functions as a feeder to feed power to the traveling wire electrode. Preferably, the wire guide and wire guide forming device are arrayed so that the wire guide travels in a straight line between the intersection of the curved edge with the straight edge and the wire forming device.
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