ELECTROCHEMICAL MACHINING METHOD AND APPARATUS
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jun 10, 2011
filing date -
Jun 10, 2010
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Abandoned
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Abstract
Electrochemical machining method and apparatus wherein in one aspect of the invention, the machining voltage is selected to maintain the highest current without initiating substantial hydrolysis of the electrolyte flushed between the work piece anode and tool cathode. In another aspect of the invention, the Low Machining Potential Voltage (LPMV) and High Machining Potential Voltage (HMPV) for a particular work piece material are identified and the work piece is machined using a voltage at or between the LMPV and HMPV. In yet another aspect of the invention, direct perturbation of the Beta Insulating Layer (BIL) is carried out in an optimally small (between about near zero to about 100 inter-electrode gap (IEG) with constant and simultaneous pulling in and pushing out of the electrolyte through the IEG.
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