Abstract:
Conventional machining techniques of ceramics such as milling, drilling, and turning
experience high cutting forces as well as extensive tool wear. Nevertheless, non-contact processes such
as laser machining and electro-discharge machining (EDM) remain suitable options for machining
ceramics materials, which are considered as extremely brittle and hard-to-machine. Considering the
importance of ceramic machining, this paper attempts to provide an insight into the state of the art
of the EDM process, types of ceramics materials and their applications, as well as the machining
techniques involved. This study also presents a concise literature review of experimental and
theoretical research studies conducted on the EDM of ceramics. Finally, a section summarizing
the major challenges, proposed solutions, and suggestions for future research directions has been
included at the end of the paper.