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On Electrical Discharge Machining of Non-Conductive Ceramics: A Review

Department of High-Efficiency Machining Technologies, Moscow State University of Technology STANKIN, Vadkovskiy per. 3A, 127055 Moscow, Russia
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Technologies 2019, 7(3), 55; https://doi.org/10.3390/technologies7030055
Received: 4 July 2019 / Revised: 30 July 2019 / Accepted: 5 August 2019 / Published: 8 August 2019
(This article belongs to the Special Issue Reviews and Advances in Materials Processing)
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Abstract

The inability of ceramic and nanoceramic processing without expensive diamond tools and with a high-material-removal rate hampers the scope of its potential applications and does not allow humanity to make a full shift to the sixth technological paradigm associated with Kuhn scientific revolutions and Kondratieff’s waves and restrains the growth of the economy. The authors completed a review on the research state of ceramic and nanoceramic processing by electrical discharge machining, which is possibly solved by two principal approaches associated with the usage of standard commercially available machine tools. The first approach is related to the introduction of expensive secondary phase; the second approach proposes initiate processing by adding auxiliary electrodes in the form of coating, suspension, aerosol, or 3D-printed layer based on the components of silver, copper, or graphite in combination with an improved dielectric oil environment by introducing graphite or carbon nanoparticles, which is hugely relevant today. View Full-Text
Keywords: electrical discharge machining; nanoceramics; coatings; auxiliary electrode; electrical conductivity; oxides; nitrides; carbon particles; oil medium electrical discharge machining; nanoceramics; coatings; auxiliary electrode; electrical conductivity; oxides; nitrides; carbon particles; oil medium
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Volosova, M.; Okunkova, A.; Peretyagin, P.; Melnik, Y.A.; Kapustina, N. On Electrical Discharge Machining of Non-Conductive Ceramics: A Review. Technologies 2019, 7, 55.

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