Formation of Taylor Cone Shaped Asperities on Cylindrical Surfaces by Applying Electric Discharges in Pulse

Article Preview

Abstract:

This paper presents the results of experimental research on Taylor cone shaped menisci formation on the surfaces of pieces by applying electric discharges in pulse. It examines the influence of energy stored in the capacitor and of pulse duration on their formation. The modification of piece surface micro-geometry aims to increase the capacity of absorption of radiation and of particle emission. It shows that the size of formed menisci depends on the energy regime of machining, on the gap size, on the duration of electric discharges in pulse and on thermal physical properties of the material used to execute the piece.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

178-183

Citation:

Online since:

October 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Topala, P.; Dushenko, V.; Ghitlevichi, A. Об условиях образования расплава на поверхности детали-катода при электроискровом легировании на установках типа «Разряд». Chisinau, Electronic Material Processing, No. 6, 1990, pp.17-18.

Google Scholar

[2] P. Topala; P. Stoicev. Tehnologii de prelucrare a materialelor conductibile cu aplicarea descărcărilor electrice în impuls. Chisinau, Edition TEHNICA-INFO, 2008, 265 p.

Google Scholar

[3] Topală, Pavel; Laurenţiu, Slătineanu; Stoicev, Petru. Physical and chemical processes during the machining by means of the electro–erosive method. Nonconventional technologies review. – 2010, No. 1, pp.50-54.

Google Scholar

[4] Topala, Pavel; Rusnac, Vladislav. The influence of the magnetic field on the process of modifying the surfaces micro–geometry metal and semiconductor by applying the electrical discharges in impulse. Proceedings of the 14th International Conference Modern Technologies, Quality and Innovation, ModTech 2010 – New face of T.M.C.R., 20–22 May, 2010, Slanic Moldova, Romania, pp.643-646.

Google Scholar

[5] P. Topala; V. Rusnac; V. Beşliu; A. Ojegov; N. Pinzaru. Physical and chemical effects of EDI processing. Internet Journal of Engineering and Technology, 2011, Vol. 2, no. 2, issue 1. http: /www. i-jet. eu/journal-ijet/c-p-ijet 112. pdf.

Google Scholar

[6] Topala, P.; Guzgan, D.; Rusnac, V. Tehnologii de formare a suprafeţelor pentru emisie electronică. Vol. 38, International Scientific Symposium, Chisinau, 2013, pp.196-201, ISBN 978-9975-64-251-4.

Google Scholar

[7] Topala, Pavel, Rusnac, Vladislav, Guzgan, Dorin. Increasing the thermoelectric capacity of emition in cathodes by modifying their surface microgeometry. The 16th International Conference Inventica 2012, June 13-15, 2012, Iasi, Romania. Edition Performantica, National Institute of Inventica. pp.623-624.

Google Scholar

[8] Topala Pavel, Olaru Ion, Rusnac Vladislav. Noi secvenţe la tabloul fizic al fenomenului electroeroziunii. Collection of scientific papers, Modern Technologies, Quality, Reorganization, Vol. 2, Chisinau, May, (2005).

Google Scholar

[9] Topala, Pavel; Rusnac, Vladislav. Experimental investigations concerning the extraction of cone meniscus on metal surfaces with electrical discharge machining (EDM) adhibition. Bulletin of the Polytechnic Institute from Iasi, Vol. LIV (LVIII), Fasc. 1-3, 2008. pp.113-120.

Google Scholar

[10] Vladislav, Rusnac. Modelarea prin metoda reţelelor neuronale a procesului de modificare microgeometriei suprafeţelor metalice sub acţiunea descărcărilor electrice în impuls, UASM, Anniversary International Conference, Chisinau, 2008, pp.160-164.

Google Scholar

[11] Vladislav, Rusnac. The Role of Energy and Duration of Discharging Pulse During the Micro Geometry Changing Process of Metallic Parts Surfaces by Applying Electric Discharges in Pulse. The Annals of , Dunarea de Jos" University of Galati, Fascicle V, Technologies in Machine Building. 2008, pp.61-68.

DOI: 10.35219/tmb

Google Scholar

[12] Pavel, Topala; Vladislac, Rusnac. The influence of the magnetic field on the process of modifying the surfaces micro-geometry metal and semiconductor by applying the electrical discharges in impulse. Proceedings of The 14 International Conference, Modern Technologies, Quality and Innovation, ModTech, Romania, 2010, pp.643-646.

Google Scholar

[13] Ginzel Jens, Behrens Arno, Wulfsberg Jens Peter: Technology Development for EDM using Statistical Analysis of Arc Information, Journal of Materials Processing Technology, 10 Iunie 2004, pp.232-237.

DOI: 10.1016/j.jmatprotec.2003.10.039

Google Scholar