Influence of electrical discharge machining on sliding friction and wear of WC-Ni cemented carbide

被引：20
|
作者：
Bonny, K. [1 ]
De Baets, P. [1 ]
Van Wittenberghe, J. [1 ]
Delgado, Y. Perez [1 ]
Vleugels, J. [2 ]
Van der Biest, O. [2 ]
Lauwers, B. [3 ]
机构：
[1] Ghent Univ UGent, Mech Construct & Prod Dept, BE-9000 Ghent, Belgium
[2] Catholic Univ Leuven KU Leuven, Dept Met & Mat Engn, BE-3001 Louvain, Belgium
[3] Catholic Univ Leuven KU Leuven, Dept Mech Engn, BE-3001 Louvain, Belgium
来源：
TRIBOLOGY INTERNATIONAL | 2010年 / 43卷 / 12期
关键词：
WC-Ni cemented carbide; Wire-EDM; Dry reciprocating sliding; Pin-on-plate; TRIBOLOGICAL CHARACTERISTICS; ELECTROCHEMICAL-BEHAVIOR; CO; EDM; RESISTANCE; HARDMETALS; STRENGTH; FRACTURE; NANOCOMPOSITES; CORROSION;
D O I：
10.1016/j.triboint.2010.08.008
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Tribological characteristics of fine-grained WC-8 wt%Ni with different surface finishing conditions corresponding to sequential wire electrical discharge machining (wire-EDM) or grinding were investigated by performing dry reciprocating sliding experiments on TE77 pin-on-plate equipment with WC-6 wt%Co as mating material. Surface finishes and wear surfaces were characterized using surface topography scanning, SEM analysis and EDX spectrometry. The decreased wear resistance due to wire-EDM could be linked to flexural strength properties as well as XRD measurements revealing tensile residual stresses on wire-EDM surfaces, in contrast with the compressive stress state on ground surfaces. Substantial improvement of wear resistance was accomplished with finer-executed EDM steps. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2333 / 2344
页数：12
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