Machinability of ZTA-TiC ceramics by electrical discharge drilling

被引:20
作者
Munz, M. [1 ]
Risto, M. [1 ]
Haas, R. [1 ]
Landfried, R.
Kern, F.
Gadow, R.
机构
[1] Hsch Karlsruhe Tech & Wirtschaft, IMP, D-76133 Karlsruhe, Germany
来源
PROCEEDINGS OF THE SEVENTEENTH CIRP CONFERENCE ON ELECTRO PHYSICAL AND CHEMICAL MACHINING (ISEM) | 2013年 / 6卷
关键词
ZTA-TiC; electrical discharge drilling; pulse form; flushing conditions; discharge energy; EDM;
D O I
10.1016/j.procir.2013.03.022
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electric discharge machining of ceramics becomes principally feasible if the ceramic material has a sufficiently high electric conductivity. This can be achieved by adding transition metal carbides, borides or nitrides such as titanium carbide. In case of electric discharge drilling the small electrode dimensions lead to higher current densities compared to die sinking. In order to avoid bursting of the ceramics by thermal shock machining parameters have to be well adjusted and the material should have a high thermal conductivity. A parameter study was carried out to observe the removal behavior depending on machine parameters such as discharge energy, pulse form and flushing conditions. (C) 2013 The Authors. Published by Elsevier B.V. Selection and/or peer-review under responsibility of Professor Bert Lauwers
引用
收藏
页码:77 / 82
页数:6
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