Micro electrochemical machining for complex internal micro features |
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Authors: | Chan Hee Jo Chong Nam Chu |
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Affiliation: | a School of Mechanical & Aerospace Engineering, Seoul National University, Seoul, Republic of Korea b School of Mechanical Engineering, Andong National University, Andong, Republic of Korea |
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Abstract: | In this paper, the application of micro electrochemical machining (ECM) for the micromachining of internal features is investigated. By controlling pulse conditions and machining time, micro features are machined on the side wall of a micro hole. These methods can easily machine a micro hole with larger internal diameters than the entrance diameter, which is very difficult to do by the conventional processes. A micro disk-shaped electrode with an insulating layer on its surface is also introduced to machine microgrooves inside the hole. This method is similar to the turning lathe process. The purpose of this study was to confirm the various possibilities of making complex internal structures in a micro hole by micro ECM. |
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Keywords: | Electrochemical machining (ECM) Micromachining Internal feature |
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