Abstract
Electro discharge machining process experiences limitation due to the non-conductive nature of the workpiece material. However, researchers proposed assistive EDM technique to machine nonconductive materials in the past. These assistive techniques require a minimal thickness of 100 µm conductive coating on the workpiece surface which usually takes longer time to coat the surface using PVD (physical vapor deposition) method. In this paper, a new modified assistive EDM method has been proposed to machine nonconductive Aluminum Nitride ceramics successfully. A three layers coating was used that included silver coating, carbon tape and silver nano-powder on a non-conductive aluminium nitride. This coating aids in conducting EDM operation due to the availability of conductive particles. Apart from the decomposition of dielectric that facilitates carbon particles on top of conductive carbon layer, coating itself also contributes in conductive silver particles. Therefore, carbon as well as silver debris that remains on the ceramics surface aids in continuous spark generation which in turn creates alternative thermal load and thus removes materials.
| Original language | English |
|---|---|
| Title of host publication | Nano Engineering and Materials Technologies III |
| Editors | Kazuo Umemura |
| Publisher | Trans Tech Publications |
| Pages | 109-113 |
| Number of pages | 5 |
| ISBN (Print) | 9783035714302 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
| Event | 7th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2018 and International Conference on Materials Technology and Applications, ICMTA 2018 - Sapporo, Japan Duration: Oct 26 2018 → Oct 29 2018 |
Publication series
| Name | Materials Science Forum |
|---|---|
| Volume | 947 MSF |
| ISSN (Print) | 0255-5476 |
Conference
| Conference | 7th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2018 and International Conference on Materials Technology and Applications, ICMTA 2018 |
|---|---|
| Country | Japan |
| City | Sapporo |
| Period | 10/26/18 → 10/29/18 |
Fingerprint
Keywords
- Assisted EDM
- Ceramics
- Nano powder
- Silver coating
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Assistive electro discharge machining of ain ceramics. / Sarsen, Aydarkhan; Bilal, Azat; Ravi Sankar, M.; Talamona, Didier; Perveen, Asma.
Nano Engineering and Materials Technologies III. ed. / Kazuo Umemura. Trans Tech Publications, 2019. p. 109-113 (Materials Science Forum; Vol. 947 MSF).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Assistive electro discharge machining of ain ceramics
AU - Sarsen, Aydarkhan
AU - Bilal, Azat
AU - Ravi Sankar, M.
AU - Talamona, Didier
AU - Perveen, Asma
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Electro discharge machining process experiences limitation due to the non-conductive nature of the workpiece material. However, researchers proposed assistive EDM technique to machine nonconductive materials in the past. These assistive techniques require a minimal thickness of 100 µm conductive coating on the workpiece surface which usually takes longer time to coat the surface using PVD (physical vapor deposition) method. In this paper, a new modified assistive EDM method has been proposed to machine nonconductive Aluminum Nitride ceramics successfully. A three layers coating was used that included silver coating, carbon tape and silver nano-powder on a non-conductive aluminium nitride. This coating aids in conducting EDM operation due to the availability of conductive particles. Apart from the decomposition of dielectric that facilitates carbon particles on top of conductive carbon layer, coating itself also contributes in conductive silver particles. Therefore, carbon as well as silver debris that remains on the ceramics surface aids in continuous spark generation which in turn creates alternative thermal load and thus removes materials.
AB - Electro discharge machining process experiences limitation due to the non-conductive nature of the workpiece material. However, researchers proposed assistive EDM technique to machine nonconductive materials in the past. These assistive techniques require a minimal thickness of 100 µm conductive coating on the workpiece surface which usually takes longer time to coat the surface using PVD (physical vapor deposition) method. In this paper, a new modified assistive EDM method has been proposed to machine nonconductive Aluminum Nitride ceramics successfully. A three layers coating was used that included silver coating, carbon tape and silver nano-powder on a non-conductive aluminium nitride. This coating aids in conducting EDM operation due to the availability of conductive particles. Apart from the decomposition of dielectric that facilitates carbon particles on top of conductive carbon layer, coating itself also contributes in conductive silver particles. Therefore, carbon as well as silver debris that remains on the ceramics surface aids in continuous spark generation which in turn creates alternative thermal load and thus removes materials.
KW - Assisted EDM
KW - Ceramics
KW - Nano powder
KW - Silver coating
UR - http://www.scopus.com/inward/record.url?scp=85066241234&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066241234&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.947.109
DO - 10.4028/www.scientific.net/MSF.947.109
M3 - Conference contribution
SN - 9783035714302
T3 - Materials Science Forum
SP - 109
EP - 113
BT - Nano Engineering and Materials Technologies III
A2 - Umemura, Kazuo
PB - Trans Tech Publications
ER -