Improvement of electro-chemical discharge machining process using a side insulated electrode

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

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 languageEnglish
Title of host publicationProceedings of the 15th International Symposium on Electromachining, ISEM 2007
EditorsMurali Meenakshi Sundaram, K.P. Rajurkar, Ralph L. Resnick
PublisherIndustrial and Management Systems Engineering
Pages451-455
Number of pages5
ISBN (Electronic)0979497701, 9780979497704
Publication statusPublished - 2007 Jan 1
Event15th International Symposium on Electromachining, ISEM 2007 - Pittsburgh, United States
Duration: 2007 Apr 232007 Apr 27

Publication series

NameProceedings of the 15th International Symposium on Electromachining, ISEM 2007

Other

Other15th International Symposium on Electromachining, ISEM 2007
CountryUnited States
CityPittsburgh
Period07/4/2307/4/27

Fingerprint

Electric discharge machining
Electrodes
Electric sparks
Wetting
Machining
Anodes
Electrolytes
Hydrogen
Dielectric films
Electrolysis
Insulation
Hydrodynamics
Experiments
Glass

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Han, M. S., Min, B. K., & Lee, S. J. (2007). Improvement of electro-chemical discharge machining process using a side insulated electrode. In M. M. Sundaram, K. P. Rajurkar, & R. L. Resnick (Eds.), Proceedings of the 15th International Symposium on Electromachining, ISEM 2007 (pp. 451-455). (Proceedings of the 15th International Symposium on Electromachining, ISEM 2007). Industrial and Management Systems Engineering.
Han, Min Seop ; Min, Byung Kwon ; Lee, Sang Jo. / Improvement of electro-chemical discharge machining process using a side insulated electrode. Proceedings of the 15th International Symposium on Electromachining, ISEM 2007. editor / Murali Meenakshi Sundaram ; K.P. Rajurkar ; Ralph L. Resnick. Industrial and Management Systems Engineering, 2007. pp. 451-455 (Proceedings of the 15th International Symposium on Electromachining, ISEM 2007).
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Han, MS, Min, BK & Lee, SJ 2007, Improvement of electro-chemical discharge machining process using a side insulated electrode. in MM Sundaram, KP Rajurkar & RL Resnick (eds), Proceedings of the 15th International Symposium on Electromachining, ISEM 2007. Proceedings of the 15th International Symposium on Electromachining, ISEM 2007, Industrial and Management Systems Engineering, pp. 451-455, 15th International Symposium on Electromachining, ISEM 2007, Pittsburgh, United States, 07/4/23.

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 proceedingConference contribution

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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.

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Han MS, Min BK, Lee SJ. Improvement of electro-chemical discharge machining process using a side insulated electrode. In Sundaram MM, Rajurkar KP, Resnick RL, editors, Proceedings of the 15th International Symposium on Electromachining, ISEM 2007. Industrial and Management Systems Engineering. 2007. p. 451-455. (Proceedings of the 15th International Symposium on Electromachining, ISEM 2007).