Developments in electric power supply configurations for electrical-discharge-machining (EDM)

Author

Sen, B. ; Kiyawat, N. ; Singh, P.K. ; Mitra, Subhasish ; Ye, J.H. ; Purkait, J. H Ykmd P

Author_Institution

Dept. of Mech. Eng., Haldia Inst. of Technol., India

Volume

1

fYear

2003

fDate

17-20 Nov. 2003

Firstpage

659

Abstract

The electric discharge machining (EDM) process provides one of the best alternatives, or sometimes the only alternative, to machine a growing number of high-strength and corrosion-and-wear-resistant materials. It is based on the principle of erosion of metals by an interrupted electric spark. The power supply design and configuration requirements for producing the desired "spark" have always been challenge to the researchers and manufacturers. With the evolution of advanced electronics knowledge-base, the EDM power supply configurations have constantly been updated over the years. The present paper reviews the developments in high frequency electric power supply configurations used for the EDM process.

Keywords

electrical discharge machining; power supplies to apparatus; resonant power convertors; sparks; corrosion resistant materials; electric discharge machining process; high frequency electric power supply configurations; interrupted electric spark; power supply design; pulse generator circuit; relaxation circuit; resonant converter; wear-resistant materials; Dielectrics; Electrodes; Frequency; Machining; Manufacturing; Power supplies; Pulsed power supplies; Sparks; Surface discharges; Surface finishing;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on

Print_ISBN

0-7803-7885-7

Type

conf

DOI

10.1109/PEDS.2003.1282955

Filename

1282955