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Micro Electrochemical Machining of Stainless Steel Using Citric Acid  

Ryu, Shi-Hyoung (전북대학교 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.3, 2008 , pp. 134-140 More about this Journal
Abstract
Micro electrochemical machining (ECM) is conducted on stainless steel 304 using non-toxic electrolyte of citric acid. Electrochemical dissolution region is minimized by applying a few hundred second duration pulses between the tungsten SPM tip and the work material. ECM characteristics according to citric acid concentration, feeding velocity and electric conditions such as pulse amplitude, pulse frequency, and offset voltage are investigated through a series of experiments. Micro holes of $60{\mu}m$ in diameter with the depth of $50{\mu}m$ and $90{\mu}m$ in diameter with the depth of $100{\mu}m$ are perforated. Square and circular micro cavities are also manufactured by electrochemical milling. This research can contribute to the development of safe and environmentally friendly micro ECM process.
Keywords
Electrochemical machining; Citric acid; Stainless steel; Micro hole; Micro cavity; Ultra short pulse;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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