The Scope of Machining of Advanced Ceramics by ElectroDischarge Machining and Its Hybrid Variants

Abstract

The constraints with the applicability and technological limitation of metal and alloy lead to the origin of advanced ceramics products or devices to enhance the system productivity and effectiveness. Advanced ceramics matrix composites (CMCs), metal nanocomposites are prepared by pressing and high-temperature sintering. The excellent properties of ceramics are preserved by the amalgamation of metal or semiconducting phase with the convention ceramics. Electro-discharge machining (EDM) has the capability to machine very rigid to cut materials that are extremely difficult to the shape by any other regular method. In the past decade, many types of research have explored machining of advanced ceramics by EDM process and came out to be some unique process to machine even non-conventional ceramics and CMCs. Many research have been found in the field of hybrid EDM process to improve the machining outcome and more efficient use of the EDM tool. One of the revolutionary findings is to machining of non-conductive advanced ceramics by EDM process. In the present paper, a critical review of advanced ceramics machining by EDM and its hybrid for ceramics and its composite are presented.