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An Experimental Study on the Improvement of Microscopic Machinability of Glass using the Discharging Peak Control Techniques in the Electrochemical Discharge Machining Technologies  

Chang, In-Bae (Department of Mechanical Engineering and Mechatronics, Kangwon National University)
Kim, Nam-Hyeock (Graduate School, Department of Mechanical Engineering and Mechatronics, Kangwon National University)
Kim, Byeong-Hee (Department of Mechanical Engineering and Mechatronics, Kangwon National University)
Kim, Heon-Young (Department of Mechanical Engineering and Mechatronics, Kangwon National University)
Publication Information
KSTLE International Journal / v.3, no.2, 2002 , pp. 95-100 More about this Journal
Abstract
Electrochemical discharge machining is a very recent technique for non-conducting materials such as ceramics and glasses. ECDM is conducted in the NaOH solution and the cathode electrode is separated from the solution by H$_2$ gas bubble. Then the discharge is appeared and the non-conductive material is removed by spark and some chemical reactions. In the ECDM technology, the H$_2$ bubble control is the most important factor to stabilize the discharging condition. In this paper we proposed the discharge peak monitoring/discharging duty feedback algorithms fur the discharge stabilization and the feasibility of this algorithm is verified by various pattern machining in the constant preload conditions for the cathode electrode.
Keywords
ECDM (electrochemical discharge machining); glass machining; MEMS; micro-channel;
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