| URN | etd-0808110-215853 | Statistics | This thesis had been viewed 641 times. Download 0 times. |
| Author | Yan-shuo Huang | ||
| Author's Email Address | gaga0919@hotmail.com | ||
| Department | Institute of Mechatronic Engineering | ||
| Year | 2009 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 69 |
| Title | Microfabrication of Quartz by Electrochemical Discharge Machining | ||
| Keyword | |||
| Abstract | In recent years, electrochemical discharge machining (ECDM) has become the preferred non-traditional processing technology, which is mainly applied to machining non-conductive hard brittle materials. This study investigated the precision and stability of quartz fabricated by ECDM and explored the optimal processing parameters including size of electrode, machining speed as well as pulse-on and pulse-off duration. Microgrooves machined under the optimal processing parameters with adjusted rotational speed and feed rate were examined to understand the effect of different ECDM parameters on machining performance. Results indicate that micro-holes of better morphology could be obtained under pulse voltage of 40 V, electrolyte concentration of 5 M, electrode size of 125 £gm. Moreover, rotational speed of 1500 rpm and pulse-on/pulse-off (ms) ratio of 1:0.6 gave higher machining accuracy with smaller hole diameter and shorter machining time. Finally, microgrooves machined under the optimal processing parameters showed the best accuracy in dimension and cross-sectional morphology at rotational speed of 2500 rpm, pulse-on /pulse-off (ms) ratio of 1:1.6, and feed rate of 3000 £gm/min. |
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| Files | indicate not accessible | ||
| Date of Defense | 2010-07-28 | Date of Submission | 2010-08-11 |