Shaped-tube electrolytic machining process
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United States of America Patent
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Jun 21, 1994
Grant Date -
N/A
app pub date -
Jan 19, 1993
filing date -
Jan 19, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A process of electrolytic machining holes of uniform diameter in a conductive workpiece, particularly one having a slotted lower portion. Drilling is accomplished electrochemically by providing a conductive tube, passing an electrolytic fluid through the tube to the workpiece, and passing a DC current between the tube and the workpiece through the electrolyte. The DC current causes material from the workpiece to 'deplate' into the electrolyte, resulting in the formation of the hole. Hole diameter is made uniform by maintaining the supplied DC current constant, despite sudden changes in the conductivity of the electrolyte, the workpiece or both.
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