Dry electrical discharge machining with slotted electrodes

Govindan Puthumana, Girish Kadam, Suhas S. Joshi, M. P. Kawthekar

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Abstract

Dry electrical discharge machining is the process, which employs gas as the dielectric medium instead of liquid. Low material removal rate (MRR) and poor stability are the two major research issues of this process. This paper aims to investigate the feasibility and capability of the dry EDM process through a set of experiments. Experiments were performed using electrodes of diameters 3 mm and 3 mm with peripheral slots to analyze the effect of control factors such as gap voltage, discharge current, pulse on-time and duty factor (electrical), spindle speed and gas pressure (non-electrical). Statistical analysis using ANOVA for MRR and oversize showed that discharge current (I) and pulse-on time (Ton) were the most influencing factors for a dry EDM using slotted electrodes.
Original languageEnglish
Title of host publicationProceedings of the Sixth International Conference on Precision, Meso, Micro and Nano Engineering (COPEN6)
Number of pages6
Publication date2009
Publication statusPublished - 2009
Externally publishedYes
EventSixth International Conference on Precision, Meso, Micro and Nano Engineering - Coimbatore, India
Duration: 11 Dec 200912 Dec 2009

Conference

ConferenceSixth International Conference on Precision, Meso, Micro and Nano Engineering
CountryIndia
CityCoimbatore
Period11/12/200912/12/2009

Keywords

  • Dry EDM
  • Slotted electrode
  • Taguchi method
  • ANOVA
  • MRR
  • Oversize

Cite this

Puthumana, G., Kadam, G., S. Joshi, S., & P. Kawthekar, M. (2009). Dry electrical discharge machining with slotted electrodes. In Proceedings of the Sixth International Conference on Precision, Meso, Micro and Nano Engineering (COPEN6)