Influence of secondary electro-conductive phases on the electrical discharge machinability and frictional behavior of ZrO2-based ceramic composites

被引:40
作者
Bonny, K. [1 ]
De Baets, P. [1 ]
Vleugels, J. [2 ]
Salehi, A. [2 ]
Van der Biest, O. [2 ]
Lauwers, B. [3 ]
Liu, W. [3 ]
机构
[1] Univ Ghent, Dept Mech Construct & Prod, B-9000 Ghent, Belgium
[2] Katholieke Univ Leuven, Dept Met & Mat Engn, MTM, B-3001 Louvain, Belgium
[3] Katholieke Univ Leuven, Dept Mech Engn, PMA, B-3001 Louvain, Belgium
关键词
ZrO2; composite; Wire EDM; Material removal rate; Surface integrity; Dry sliding; Friction coefficient;
D O I
10.1016/j.jmatprotec.2008.01.020
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
ZrO2-based composites with 40 vol.% WC, TiCN or TiN were processed in order to investigate the wire electrical discharge machining (EDM) possibility in demineralised water. The relationships between material removal rate (MRR), surface finish and wire EDM parameters were derived. Tribological data were obtained on wire-EDM'ed ZrO2-based composites in reciprocating sliding contact with WC/Co cemented carbide using a pin-on-plate testing rig. Correlations between coefficient of friction on the one hand and material properties and test conditions on the other hand were determined. The experimental results revealed a strong influence of the secondary electro-conductive phase on the EDM behavior, surface finish, mechanical properties and frictional characteristics of the ZrO2-based composites. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:423 / 430
页数:8
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