Abstract
Electro-Chemical Discharge Machining (ECDM) is an effective electrical machining method for nonconductive materials such as a glass. However, precise control of the spark generations in ECDM process is difficult because of the complexity in hydrogen dielectric film formation. The spark generation in ECDM process is closely related with the anode effect phenomenon which has been explained as a consequence of altered wettability of the electrode surface during electrolysis process. The initiation of the anode effect is mainly influenced by critical current density which is dependent on number of parameters such as the wettability of the hydrogen bubble, the surface conditions of electrode, and hydrodynamic characteristics of the bubbles. In this study partially side insulated electrode which maintains the constant contact surface area with electrolyte has been applied to the ECDM process in order to manage regular critical current density. The experiment results demonstrated that ECDM with side insulated electrode immerged in the electrolyte generates more stable spark discharge compared to non-insulated electrode, and the machining process repeatability was improved. Experiments were conducted to investigate the effects of the side insulation to the process quality.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 15th International Symposium on Electromachining, ISEM 2007 |
| Editors | Murali Meenakshi Sundaram, K.P. Rajurkar, Ralph L. Resnick |
| Publisher | Industrial and Management Systems Engineering |
| Pages | 451-455 |
| Number of pages | 5 |
| ISBN (Electronic) | 0979497701, 9780979497704 |
| Publication status | Published - 2007 Jan 1 |
| Event | 15th International Symposium on Electromachining, ISEM 2007 - Pittsburgh, United States Duration: 2007 Apr 23 → 2007 Apr 27 |
Publication series
| Name | Proceedings of the 15th International Symposium on Electromachining, ISEM 2007 |
|---|
Other
| Other | 15th International Symposium on Electromachining, ISEM 2007 |
|---|---|
| Country | United States |
| City | Pittsburgh |
| Period | 07/4/23 → 07/4/27 |
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All Science Journal Classification (ASJC) codes
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
Cite this
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Improvement of electro-chemical discharge machining process using a side insulated electrode. / Han, Min Seop; Min, Byung Kwon; Lee, Sang Jo.
Proceedings of the 15th International Symposium on Electromachining, ISEM 2007. ed. / Murali Meenakshi Sundaram; K.P. Rajurkar; Ralph L. Resnick. Industrial and Management Systems Engineering, 2007. p. 451-455 (Proceedings of the 15th International Symposium on Electromachining, ISEM 2007).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Improvement of electro-chemical discharge machining process using a side insulated electrode
AU - Han, Min Seop
AU - Min, Byung Kwon
AU - Lee, Sang Jo
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Electro-Chemical Discharge Machining (ECDM) is an effective electrical machining method for nonconductive materials such as a glass. However, precise control of the spark generations in ECDM process is difficult because of the complexity in hydrogen dielectric film formation. The spark generation in ECDM process is closely related with the anode effect phenomenon which has been explained as a consequence of altered wettability of the electrode surface during electrolysis process. The initiation of the anode effect is mainly influenced by critical current density which is dependent on number of parameters such as the wettability of the hydrogen bubble, the surface conditions of electrode, and hydrodynamic characteristics of the bubbles. In this study partially side insulated electrode which maintains the constant contact surface area with electrolyte has been applied to the ECDM process in order to manage regular critical current density. The experiment results demonstrated that ECDM with side insulated electrode immerged in the electrolyte generates more stable spark discharge compared to non-insulated electrode, and the machining process repeatability was improved. Experiments were conducted to investigate the effects of the side insulation to the process quality.
AB - Electro-Chemical Discharge Machining (ECDM) is an effective electrical machining method for nonconductive materials such as a glass. However, precise control of the spark generations in ECDM process is difficult because of the complexity in hydrogen dielectric film formation. The spark generation in ECDM process is closely related with the anode effect phenomenon which has been explained as a consequence of altered wettability of the electrode surface during electrolysis process. The initiation of the anode effect is mainly influenced by critical current density which is dependent on number of parameters such as the wettability of the hydrogen bubble, the surface conditions of electrode, and hydrodynamic characteristics of the bubbles. In this study partially side insulated electrode which maintains the constant contact surface area with electrolyte has been applied to the ECDM process in order to manage regular critical current density. The experiment results demonstrated that ECDM with side insulated electrode immerged in the electrolyte generates more stable spark discharge compared to non-insulated electrode, and the machining process repeatability was improved. Experiments were conducted to investigate the effects of the side insulation to the process quality.
UR - http://www.scopus.com/inward/record.url?scp=84907333076&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84907333076
T3 - Proceedings of the 15th International Symposium on Electromachining, ISEM 2007
SP - 451
EP - 455
BT - Proceedings of the 15th International Symposium on Electromachining, ISEM 2007
A2 - Sundaram, Murali Meenakshi
A2 - Rajurkar, K.P.
A2 - Resnick, Ralph L.
PB - Industrial and Management Systems Engineering
ER -