Design of the Tool for End Electrical Discharge Milling and Mechanical Grinding Compound Machining of Engineering Ceramics

Advanced engineering ceramics have been widely used in modern industry due to their excellent physical and chemical properties. However, they are difficult to machine due to their high hardness and brittleness. End electrical discharge milling and mechanical grinding compound machining method is employed to machine SiC ceramic in this paper. The process is able to effectively machine a large surface area on SiC ceramic. Furthermore, the tool for the compound machining of SiC ceramic is designed based on the goal of the higher material removal rate, the lower tool wear, and the better machined surface quality. The results show that with the designed tool for the compound machining, the higher material removal rate, the lower tool wear, and the better machined surface quality can be obtained.