Electrode for electrical discharge machining
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United States of America Patent
Stats
-
Sep 1, 1981
Grant Date -
N/A
app pub date -
Feb 26, 1979
filing date -
Mar 3, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrode for machining a workpiece by electrical discharges, the electrode having an active surface comprising at least 50% by weight of a metal or alloy selected from the group consisting of zinc, cadmium, tin, lead, antimony and bismuth. Preferably, the active surface is in the form of a coating electrolytically plated on the surface of a conventional metallic wire having good mechanical characteristics. The invention contemplates continuously plating a metallic filament electrode such as an electrode wire with the active surface coating after the electrode wire has been used for machining a workpiece by EDM.
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