ELECTROCHEMICAL SYSTEM AND METHOD FOR MACHINING STRONGLY PASSIVATING METALS
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United States of America Patent
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Issued Date -
Dec 15, 2011
app pub date -
Jun 6, 2011
filing date -
Jun 11, 2010
priority date (Note) -
Abandoned
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Abstract
An electrochemical machining system for metals and alloys having a strongly passivating character including an electrolyte solution that is free of hydrofluoric acid, an electrode in contact with the electrolyte solution, a workpiece spaced apart from the electrode and in contact with the electrolyte solution and a power source including a first electrical lead electrically coupled to the electrode and a second electrical lead electrically coupled to the workpiece, the power source being configured to pass an electric current between the electrode and the workpiece, wherein the electric current includes anodic pulses and cathodic pulses, and wherein the cathodic pulses are interposed between at least some of the anodic pulses.
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