Combined electrochemical machining and electropolishing micro-machining apparatus and method
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United States of America Patent
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Issued Date -
Jun 21, 2007
app pub date -
Jul 14, 2006
filing date -
Dec 19, 2005
priority date (Note) -
Abandoned
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Abstract
A combined electrochemical machining and electropolishing micro-machining method includes the steps of (1) preparing step, (2) first-stage processing step, (3) second-stage processing step, and (4) finishing step. The apparatus includes an electrochemical machining solution container, an electropolishing solution container, a metal workpiece connecting with an anode, a mold-plate portion connecting with a cathode. Based on this arrangement, the metal workpiece is immersed in a first working fluid to conduct the electrochemical machining process and then to be immersed in a second working fluid to conduct the electropolishing process. So, the overall micro-machining speed is fast. It can improve the surface roughness significantly. It is suitable for extremely hard metal workpiece.
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