Acoustic emission testing of the machining performance of SiC grinding wheel shaped Al2O3 ceramics

Engineering ceramic materials are one among the key components of technology due to their outstanding physico-mechanical properties like hardness, toughness, wear resistance and chemical stability at elevated temperatures. On the other hand, the stated unique properties of ceramics exhibit complexity during machining. Under such circumstances, online monitoring of cutting tools plays a major role. The present study involves acoustic emission (AE) testing technique for condition monitoring of machine tools. Various grades of alumina ceramics had been machined using SiC grinding wheel. Grinding process parameters like depth of cut and feed rate were varied. Introducing AE technique, the following parameters like energy, amplitude of grinding wheel wear and surface roughness of alumina ceramics were analyzed.