フルテキストURL AppSci_9_7_1412.pdf
著者 Ouyang, Zhiyong| Okamoto, Yasuhiro| Ogino, Yuta| Sakagawa, Tomokazu| Okada, Akira|
キーワード ultrashort pulsed laser glass material absorption point molten area numerical aperture
発行日 2019-03-03
出版物タイトル Applied Sciences
9巻
7号
出版者 MDPI
開始ページ 1412
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2019 by the authors
論文のバージョン publisher
DOI 10.3390/app9071412
Web of Science KeyUT 000466547500147
関連URL isVersionOf https://doi.org/10.3390/app9071412
JaLCDOI 10.18926/19628
フルテキストURL Mem_Fac_Eng_OU_32_1.pdf
著者 Guo, Changning| Uno, Yoshiyuki| Okada, Akira| Takagi, Takashi|
抄録 Low electrode wear EDM is attained by the adhesion of heat resolved carbon made from kerosine type machining fluid to the electrode end surface. This phenomenon, however, occurs only under long pulse duration. Therefore, the low electrode wear EDM under finishing condition is impossible so far. In the previous paper, the authors developed a turbostratic carbon electrode whose structure is very similar to the heat resolved carbon generated in EDM process and made it clear that the low electrode wear EDM was possible by using the electrode even under finishing condition. In this study, a carbon coated electrode and a SiC coated one which can be made rapidly at low cost were developed and their EDM characteristics were investigated. Experimental analysis pointed it out that both electrodes were effective in reducing electrode wear under finishing condition.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-04-20
32巻
1-2号
開始ページ 1
終了ページ 6
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002309140
JaLCDOI 10.18926/15359
フルテキストURL Mem_Fac_Eng_OU_34_19.pdf
著者 Okada, Akira| Uno, Yoshiyuki| Okajima, Isao|
抄録 In EDM, the machining characteristics greatly depend on the energy distribution. Therefore, it is very important to clarify the energy distribution for understanding various phenomena in EDM. In this paper, the energy distribution in EDM with graphite electrode is investigated by measuring the temperatures of electrode and workpiece. Experimental analysis shows that the material removal rate depends on energy density while the electrode wear greatly depends on the adhesion of heat resolved carbon from machining fluid, and the energies distributed into electrode and workpiece are almost constant regardless of pulse duration.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2000-03-27
34巻
1-2号
開始ページ 19
終了ページ 26
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307707