Title: EDM machinability and frictional behaviour of ZrO₂-TiCN composites

Authors: Koenraad Bonny, Patrick De Baets, Jozef Vleugels, Arezou Salehi, Omer Van der Biest, Bert Lauwers, Weidong Liu

Addresses: Department Mechanical Construction and Production, Ghent University (UGent), IR04, Sint-Pietersnieuwstraat 41, B-9000 Gent, Belgium. ' Department Mechanical Construction and Production, Ghent University (UGent), IR04, Sint-Pietersnieuwstraat 41, B-9000 Gent, Belgium. ' Department Metallurgy and Materials Engineering, Catholic University Leuven (K.U.Leuven), MTM, Kasteelpark Arenberg 44 (bus 02450), B-3001 Leuven, Belgium. ' Department Metallurgy and Materials Engineering, Catholic University Leuven (K.U.Leuven), MTM, Kasteelpark Arenberg 44 (bus 02450), B-3001 Leuven, Belgium. ' Department Metallurgy and Materials Engineering, Catholic University Leuven (K.U.Leuven), MTM, Kasteelpark Arenberg 44 (bus 02450), B-3001 Leuven, Belgium. ' Department of Mechanical Engineering, Catholic University Leuven (K.U.Leuven), PMA, Celestijnenlaan 300 B (bus 2420), B-3001 Leuven, Belgium. ' Department of Mechanical Engineering, Catholic University Leuven (K.U.Leuven), PMA, Celestijnenlaan 300 B (bus 2420), B-3001 Leuven, Belgium

Abstract: Zirconia composites with 40 vol% TiCN were proven to be feasible for wire electrical discharge machining (EDM). Optimum material removal rates were assessed. The material removal mechanisms were elucidated. Gradually finer EDM regimes improved the surface quality considerably. Dry sliding frictional characteristics of ZrO₂-TiCN against WC-Co cemented carbide were evaluated.

Keywords: zirconia composites; zirconium oxide; titanium carbonitride; WC-Co cemented carbides; nanocrystalline; wire EDM; electrical discharge machining; electro-discharge machining; surface integrity; friction; dry reciprocating sliding; EDM machinability; frictional behaviour; material removal rate; MRR; surface quality.

DOI: 10.1504/IJMMM.2008.020960

International Journal of Machining and Machinability of Materials, 2008 Vol.3 No.3/4, pp.226 - 240

Published online: 29 Oct 2008 *

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