File(s) under permanent embargo
The Effect of High Frequency Pulse on the Discharge Probability in Micro EDM
conference contribution
posted on 2017-12-21, 00:00 authored by Y Liu, Y Qu, W Zhang, F Ma, Z Sha, Y Wang, Bernard RolfeBernard Rolfe, S Zhang© Published under licence by IOP Publishing Ltd. High frequency pulse improves the machining efficiency of micro electric discharge machining (micro EDM), while it also brings some changes in micro EDM process. This paper focuses on the influence of skin-effect under the high frequency pulse on energy distribution and transmission in micro EDM, based on which, the rules of discharge probability of electrode end face are also analysed. On the basis of the electrical discharge process under the condition of high frequency pulse in micro EDM, COMSOL Multiphysics software is used to establish energy transmission model in micro electrode. The discharge energy distribution and transmission within tool electrode under different pulse frequencies, electrical currents, and permeability situation are studied in order to get the distribution pattern of current density and electric field intensity in the electrode end face under the influence of electrical parameters change. The electric field intensity distribution is regarded as the influencing parameter of discharge probability on the electrode end. Finally, MATLAB is used to fit the curve and obtain the distribution of discharge probability of electrode end face.
History
Event
Materials Science and Mechanical Engineering. Workshop (2017 : Kunming, China)Volume
281Issue
1Series
IOP Conference Series: Materials Science and EngineeringPagination
1 - 7Publisher
IOP PublishingLocation
Kunming, ChinaPlace of publication
Bristol, Eng.Publisher DOI
Start date
2017-10-27End date
2017-10-29ISSN
1757-8981eISSN
1757-899XLanguage
engPublication classification
E Conference publication; E1 Full written paper - refereedTitle of proceedings
IWMSME 2017 : Proceedings of the 1st International Workshop on Materials Science and Mechanical EngineeringUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC