Machinability of ZTA-TiC Ceramics by Electrical Discharge Drilling

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 electr...

Full description

Saved in:
Bibliographic Details
Published inProcedia CIRP Vol. 6; pp. 77 - 82
Main Authors Munz, M., Risto, M., Haas, R., Landfried, R., Kern, F., Gadow, R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2013
Subjects
Discharge energy
Electrical discharge drilling
Flushing conditions
Pulse form
ZTA-TiC
ZTA-TiC
Pulse form
Discharge energy
Electrical discharge drilling
Flushing conditions
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2013.03.022