Electrical Discharge Diamond Grinding

Abstract

The current requirement for complex systems has prompted the development of novel materials that are both strong and lightweight. Machining complex shapes on these materials is always a difficulty. Also, it is challenging to achieve satisfactory results with a single machining process. As a result, hybrid machining processes are commonly utilized to achieve excellent precision and polish. Electrical discharge diamond grinding (EDDG) is an example of a hybrid process that combines the benefits of both EDM and mechanical grinding. Hard and brittle conductive materials are softened by electrical discharges, which is followed by mechanical grinding to remove the softened layer. EDDG eliminates the difficulties associated with EDM (such as recast layer, heat-affected zone) and scratching due to excessive grinding forces. This chapter provides an overview of mathematical models used in the EDDG process to predict cutting forces and material removal.