FullText URL AppSci_9_7_1412.pdf
Author Ouyang, Zhiyong| Okamoto, Yasuhiro| Ogino, Yuta| Sakagawa, Tomokazu| Okada, Akira|
Keywords ultrashort pulsed laser glass material absorption point molten area numerical aperture
Published Date 2019-03-03
Publication Title Applied Sciences
Volume volume9
Issue issue7
Publisher MDPI
Start Page 1412
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2019 by the authors
File Version publisher
DOI 10.3390/app9071412
Web of Science KeyUT 000466547500147
Related Url isVersionOf https://doi.org/10.3390/app9071412
JaLCDOI 10.18926/19628
FullText URL Mem_Fac_Eng_OU_32_1.pdf
Author Guo, Changning| Uno, Yoshiyuki| Okada, Akira| Takagi, Takashi|
Abstract 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.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 1998-04-20
Volume volume32
Issue issue1-2
Start Page 1
End Page 6
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002309140
JaLCDOI 10.18926/15359
FullText URL Mem_Fac_Eng_OU_34_19.pdf
Author Okada, Akira| Uno, Yoshiyuki| Okajima, Isao|
Abstract 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.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 2000-03-27
Volume volume34
Issue issue1-2
Start Page 19
End Page 26
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307707