STUDY ON WIRE ELECTRICAL DISCHARGE MACHINING (WEDM) PROCESS UNDER THE CONDITIONS OF ULTRASONIC ACTIVATION OF THE DIELECTRIC FLUID
Keywords:
wire electrode ultrasonic activated, WEDM process in ultrasonic field, material remove from the workpiece, ultrasonic cavitation bubbles
Abstract
In this paper, few mechanisms for removing material by Wire Electrical Discharge Machining (WEDM), with ultrasonic activated wire electrode are analyzed. Vibrations with an ultrasonic frequency of the wire electrode to the dielectric fluid from gap have been transmitted, influencing the performances of the WEDM process. The study is focuses on the phenomena that occur in dielectric fluid, as: the priming of the electrical discharge, the electrical discharge evolution, and the physic-chemical effects into the gap, as well the material removal. We found that the ultrasonic energy transferred to the dielectric fluid from the gap intensifies the electro-erosive phenomena, beginning with the emergence of the gaseous phase and the initiation of the discharge channel, and ending with the evacuation of erosion particles.
References
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[2] Mironoff N.L., (1977), Thermal effects of erosive pulses, ISEM 5, Wolfsburg
[3] Okada A., Uno Y., Nakazawa M., Yamauchi T., (2010), Evaluation of spark distribution and wire vibration in wire EDM by high-speed observation, CIRP Annals, 59 (1), 231-234
[4] Kitamura T., Kunieda M., (2014), Clarification of EDM Gap Phenomena Using Transparent Electrodes, CIRP Annals 63 (1):213-216
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[6] Savii Gh., Nani V.M., Militaru C., Muntean N., (1989). Contributions on Ultrasound Activation of Wire-Cut Electric Discharge Processing, ISEM 9, Nagoya
[7] Nani V.M., (2016). Effect of wire electrode's ultrasonic vibration on erosive capacity to W-EDM machines, International Journal of Advanced Manufacturing Technology, 88, 425-441
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[10] Juan Q., Fei Y., Jun W., Bert L., Dominiek R., (2015a). Material removal mechanism in low-energy micro-EDM process, CIRP Annals-Manufacturing Technology, 64, 225-228
[11] Wong Y., Rahman M., Lim H., Han H., Ravi N., (2003). Investigation of Micro-EDM Material Removal Characteristics Using RC-Pulse, Journal of Materials Processing Technology, 140 (1-3): 303-307
[12] Nani V.M., (2015). Ultrasonic activation of the wire electrode on EDM processing machine, ISBN: 978-3-659-68755-6, LAP LAMBERT Academic Publishing, Germany
[13] Snoeys R., Van Dyck F., (1971). Investigation of EDM Operations by Means of Thermo-Mathematical Models, Annals of the CIRP, 20 (1):35-36
[14] Hayakawa S., Sasaki Y., Itoigawa F., Nakamura T., (2013), Relationship Between Occurrence of Material Removal and Bubble Expansion in Electrical Discharge Machining, Procedia CIRP 6:174-179
[15] Choi J., Hsiao C., Chahine G., Ceccio S., (2009). Growth, oscillation and collapse of vortex cavitation bubbles, Journal of Fluid Mechanics 624:255-279
[16] Inoue K., (1977). Fundamental of Electrical Discharge Machining, Published by the Society of Non – Traditional Technology, Tokyo
[17] Van Dijck P.J., (1974). Some results of physical research in EDM, ISEM 4, Bratislava
[18] Williams E.M., (1958). Theory of electric sparks machining, Electrical Engineering
[19] Kurr R., (1974). Hänge zwischen Einzelentla-dungen Energievertei lung und technologischen Kenngrössen bei der electroerosiren Bearbeitung, Bericht der WZL-TH, Aachen
[20] Loeb L.B., Meek J.M., (ed. 1977). The Mechanism of the Electric Sparks, Stanford University Press
[21] Nani V.M., (2017). Complex phenomena study in dielectric fluid from gap during the W-EDM processing in ultrasonic field, International Journal of Advanced Manufacturing Technology, 92, 197-215.
[22] Wertheim R., Kurr R., Obaciu G., (1977). Temperaturverteilung in Spaltbereich beine funkenerosiren Genken, Industrie Anzeiger, no 99
[23] Raether H., (1964). Electron avalanches and breakdown in gases, Butterworth’s
[24] Drăgan O., Iancu C., Amza Gh., Drimer D., Isarie OI., (1983). Ultrasunete de mari energii/ High energy ultrasound, Editura Academiei RSR, Bucureşti
[2] Mironoff N.L., (1977), Thermal effects of erosive pulses, ISEM 5, Wolfsburg
[3] Okada A., Uno Y., Nakazawa M., Yamauchi T., (2010), Evaluation of spark distribution and wire vibration in wire EDM by high-speed observation, CIRP Annals, 59 (1), 231-234
[4] Kitamura T., Kunieda M., (2014), Clarification of EDM Gap Phenomena Using Transparent Electrodes, CIRP Annals 63 (1):213-216
[5] Miţkevici M.K., (1966), Ob elektro-erozionnom effekte na vibrinuişcih elektrodah, Fiziceskie osnovi elektro-iskrovoi obrabotki materiallov, Editura Nauka, Moscova
[6] Savii Gh., Nani V.M., Militaru C., Muntean N., (1989). Contributions on Ultrasound Activation of Wire-Cut Electric Discharge Processing, ISEM 9, Nagoya
[7] Nani V.M., (2016). Effect of wire electrode's ultrasonic vibration on erosive capacity to W-EDM machines, International Journal of Advanced Manufacturing Technology, 88, 425-441
[8] Bakuto I.A., (1959). O zavisimosti elektroerozionovo effekta at elektriskovo rejima rozriada, Zbarnik mancinîh FRI AM, Moscova, nr. 5
[9] Okada A., Uno Y., Onada S., Habib S., (2009). Computational Fluid Dynamics Analysis of Working Fluid Flow and Debris Movement in Wire EDMed Kearf, Annals of the CIRP 58 (1): 209-212
[10] Juan Q., Fei Y., Jun W., Bert L., Dominiek R., (2015a). Material removal mechanism in low-energy micro-EDM process, CIRP Annals-Manufacturing Technology, 64, 225-228
[11] Wong Y., Rahman M., Lim H., Han H., Ravi N., (2003). Investigation of Micro-EDM Material Removal Characteristics Using RC-Pulse, Journal of Materials Processing Technology, 140 (1-3): 303-307
[12] Nani V.M., (2015). Ultrasonic activation of the wire electrode on EDM processing machine, ISBN: 978-3-659-68755-6, LAP LAMBERT Academic Publishing, Germany
[13] Snoeys R., Van Dyck F., (1971). Investigation of EDM Operations by Means of Thermo-Mathematical Models, Annals of the CIRP, 20 (1):35-36
[14] Hayakawa S., Sasaki Y., Itoigawa F., Nakamura T., (2013), Relationship Between Occurrence of Material Removal and Bubble Expansion in Electrical Discharge Machining, Procedia CIRP 6:174-179
[15] Choi J., Hsiao C., Chahine G., Ceccio S., (2009). Growth, oscillation and collapse of vortex cavitation bubbles, Journal of Fluid Mechanics 624:255-279
[16] Inoue K., (1977). Fundamental of Electrical Discharge Machining, Published by the Society of Non – Traditional Technology, Tokyo
[17] Van Dijck P.J., (1974). Some results of physical research in EDM, ISEM 4, Bratislava
[18] Williams E.M., (1958). Theory of electric sparks machining, Electrical Engineering
[19] Kurr R., (1974). Hänge zwischen Einzelentla-dungen Energievertei lung und technologischen Kenngrössen bei der electroerosiren Bearbeitung, Bericht der WZL-TH, Aachen
[20] Loeb L.B., Meek J.M., (ed. 1977). The Mechanism of the Electric Sparks, Stanford University Press
[21] Nani V.M., (2017). Complex phenomena study in dielectric fluid from gap during the W-EDM processing in ultrasonic field, International Journal of Advanced Manufacturing Technology, 92, 197-215.
[22] Wertheim R., Kurr R., Obaciu G., (1977). Temperaturverteilung in Spaltbereich beine funkenerosiren Genken, Industrie Anzeiger, no 99
[23] Raether H., (1964). Electron avalanches and breakdown in gases, Butterworth’s
[24] Drăgan O., Iancu C., Amza Gh., Drimer D., Isarie OI., (1983). Ultrasunete de mari energii/ High energy ultrasound, Editura Academiei RSR, Bucureşti
Published
2022-03-31
How to Cite
Nani, V., Mnerie, D., & Nani, A. (2022). STUDY ON WIRE ELECTRICAL DISCHARGE MACHINING (WEDM) PROCESS UNDER THE CONDITIONS OF ULTRASONIC ACTIVATION OF THE DIELECTRIC FLUID. Nonconventional Technologies Review, 26(1). Retrieved from http://www.revtn.ro/index.php/revtn/article/view/363
Section
Articles
Copyright (c) 2022 Viorel Mihai Nani, Dumitru Mnerie, Alin Nani
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
