A Novel Pulse Power Supply for Insulated Ceramics by HS-WEDM

Author

Deng, Guanqun ; Guo, Yongfeng ; Lu, Zesheng ; Bai, Jicheng

Author_Institution

Dept. of Manuf. & Autom. Eng., Harbin Inst. of Technol., Harbin

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

4

Abstract

To and fro wire electrical discharge machining (HS-WEDM) has been employed widely. Currently, there is a new technology that using the assisting electrode method in insulated ceramics HS-WEDM machining. In this paper, a novel current wave pulse power supply is designed to machine the insulated ceramics by HS-WEDM. Aim to the two phases in the insulated ceramics HS-WEDM machining, through the high-low voltage composite method, the half-bridge circuit is designed to realize the abnormity current waveforms in the machining. The conducting layer is formed in the low current and the insulated ceramics is removed in high current for the high temperature. Compared to the normal pulse power supply, the machining speed of the novel pulse power supply is faster then the normal.

Keywords

ceramic insulators; electrical discharge machining; pulsed power supplies; assisting electrode method; current wave pulse power supply; high-low voltage composite method; insulated ceramics; wire electrical discharge machining; Cable insulation; Ceramics; Dielectrics and electrical insulation; Electrodes; Machining; Manufacturing automation; Pulsed power supplies; Sparks; Temperature; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918101

Filename

4918101