Performance of Bunched-Electrode in EDM

Lin Gu; Lei Li; Wan Sheng Zhao; K.P. Rajurkar

doi:10.4028/www.scientific.net/KEM.447-448.282

Paper Titles

Study on Influence of Stray Inductance in Micro EDM Using Electrostatic Induction Feeding Method
p.263

High Spindle Speed Wire Electrical Discharge Grinding Using Electrostatic Induction Feeding Method
p.268

Deterministic Process Modelling of Micro Air Abrasive Jet Machining of Glass Channel
p.272

Strategies for Polymer Welding with High-Power Diode Lasers
p.277

Performance of Bunched-Electrode in EDM
p.282

Automatic Manufacturing Feature Extraction of CAD Models for Machining
p.287

The Tool Path Generation by Using Configuration Space for Five-Axis Controlled Machining - Application to Rough Cutting by Using Square End Mill -
p.292

Gear Precision and Cutting Force in Dry Hobbing Gear Cutting for Gears Made of Brass Material
p.297

Towards Smart and Competitive Sustainable Machining
p.301

HomeKey Engineering MaterialsKey Engineering Materials Vols. 447-448Performance of Bunched-Electrode in EDM

Performance of Bunched-Electrode in EDM

Abstract:

This paper aims to introduce the performance of bunched-electrode for die-sinking EDM. Bunched-electrode was formed by bunching numerous hollow cell-electrodes together to generate an electrode in which end surface matches the final surface of the mould cavity. FEM analysis and experiments were conducted to demonstrate the feasibility and effectiveness of bunched electrode in ED machining. Experiments show that while machining with bunched-electrode, it is feasible to apply a much higher peak current to achieve higher MRR. Meanwhile, a special phenomenon called shallow radial craters in machining with bunched-electrodes was observed and analyzed. One possible reason may be that the plasma columns in the gap are distorted outwards by strong inner pressure flushing.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 447-448)

Pages:

282-286

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.447-448.282

Citation:

Cite this paper

Online since:

September 2010

Authors:

Lin Gu, Lei Li, Wan Sheng Zhao, K.P. Rajurkar

Keywords:

Bunched Electrode, CFD Simulation, EDM, Radial Shallow Crater

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Lonardo, P.M., et al., Effect of flushing and electrode material on die sinking EDM, Ann. CIRP 48 (1) (1999), pp.123-126.

DOI: 10.1016/s0007-8506(07)63146-1

Google Scholar

[2] Kaneko, Y., et al., Performance of Linear Motor Equipped Die-Sinking EDM, International Journal of Electrical Machining, 5 (2000), pp.59-64.

DOI: 10.2526/ijem.5.59

Google Scholar

[3] Kechagias, J, et al., EDM electrode manufacture using rapid tooling: a review, J. Mater. Sci. 43 (2008), pp.2522-2535.

DOI: 10.1007/s10853-008-2453-0

Google Scholar

[4] Zhao. W. S, et al., Bunched- Electrode for Electrical Discharge Machining, Proceedings of the ISEM XV, Pittsburgh, USA, (2007), pp.41-44.

Google Scholar

[5] LI L, et al., Research on Machining Characters of Bunched Electrode Electrical Discharge Machining, Journal of Shanghai Jiao Tong University, Vol. 43(1)(2009), pp.31-37.

Google Scholar

[6] Jing S.J., The process technology of EDM. Shuai, Y.L., Yu, X.W. (translation), National Defense Industry Press, Beijing (1983), p.56.

Google Scholar

[7] Kunieda, M., et al., Observation of arc column movement during monopulse discharge in EDM, CIRP Ann-Manuf. Technol. 41(1992), pp.227-230.

DOI: 10.1016/s0007-8506(07)61191-3

Google Scholar

[8] Descoeudres, A., et al., Time-resolved imaging and spatially-resolved spectroscopy of electrical discharge machining plasma, Journal of physics D: Applied physics. 38(2005), pp.4066-4073.

DOI: 10.1088/0022-3727/38/22/009

Google Scholar

[9] Gao, M., et al., Effects of gas shielding parameters on weld penetration of CO2 laser-TIG hybrid welding, Journal of Material Processing Technology, 184, (2007), pp.177-183.

DOI: 10.1016/j.jmatprotec.2006.11.019

Google Scholar