Dielectric fluid lifespan detection based on pulse discharge probability in wire electrical discharge machining

Dielectric fluid lifespan detection based on pulse discharge probability in wire electrical... The determination of the dielectric fluid lifespan has always been a difficult technical problem in the field of high-speed wire electrical discharge machining, which affects the stability of the machining process and the control of the machine tool quantitative indexes. A control system that can detect the inter-electrode pulse discharge probability in real time is designed in this study, and a continuous cutting experiment is performed. Results show that the dielectric fluid performance gradually changes with the cycle use of the dielectric fluid, eventually resulting in deterioration of the inter-electrode discharge state, reduction of cutting stability, slowing down of servo feed rate, and decrease of pulse discharge probability. Hence, a method for determining the dielectric fluid lifespan utilizing the pulse discharge probability is proposed, and online monitoring of dielectric fluid usage is realized. Experimental results show that the dielectric fluid lifespan has elapsed when the pulse discharge probability is less than 70%, and the cutting efficiency reduces by 20% compared with that obtained from initial machining. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Dielectric fluid lifespan detection based on pulse discharge probability in wire electrical discharge machining

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Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-0211-7
Publisher site
See Article on Publisher Site

Abstract

The determination of the dielectric fluid lifespan has always been a difficult technical problem in the field of high-speed wire electrical discharge machining, which affects the stability of the machining process and the control of the machine tool quantitative indexes. A control system that can detect the inter-electrode pulse discharge probability in real time is designed in this study, and a continuous cutting experiment is performed. Results show that the dielectric fluid performance gradually changes with the cycle use of the dielectric fluid, eventually resulting in deterioration of the inter-electrode discharge state, reduction of cutting stability, slowing down of servo feed rate, and decrease of pulse discharge probability. Hence, a method for determining the dielectric fluid lifespan utilizing the pulse discharge probability is proposed, and online monitoring of dielectric fluid usage is realized. Experimental results show that the dielectric fluid lifespan has elapsed when the pulse discharge probability is less than 70%, and the cutting efficiency reduces by 20% compared with that obtained from initial machining.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Mar 13, 2017

References

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