Journal
MATERIALS TODAY
Volume 14, Issue 10, Pages 496-501Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S1369-7021(11)70214-0
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Funding
- Spanish Ministry of Science and Innovation (MICINN)
- Fund for Scientific Research Flanders (FWO) [MAT2009-09600, G.0539.08.J]
- JAE (CSIC)
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Diamond grinding is commonly used for machining hard ceramic materials, but the development of ceramic microcomponents with complex geometries requires alternative machining processes. Through a thermoelectric process, electrical discharge machining (EDM) enables the low cost manufacture of intricate parts that require a high degree of flexibility of the shape(1). The EDM process requires sufficient electrical conductivity of the materials (> 0.3 -1 Sm-1)(2), which are eroded by melting, evaporation, chemical interaction, and/or spalling due to discrete sparks at a very high frequency between the material (workpiece) and the tool electrode, which are both submerged in a dielectric liquid.
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