OPTIMIZATION OF SURFACE ROUGHNESS IN ELECTRIC DISCHARGE MACHINING OF AISID3 STEEL USING SIC AS DIELECTRIC

In manufacturing industries various processes are adopted for material removing due to increased demand for alloy materials. It is very difficult to progress with conventional machining processes as the direct contact between tool and workpiece often causes damages to the material. The solution to it is Non-conventional machining in which Electric Discharge Machining (EDM) also referred to as spark machining process is one of the most effective processes of machining. In today’s era of global competition and technical growth where there is a strong need to of high quality and efficient products. Surface roughness is one of the critical and most effective parameter that affects several Mechanical properties, thus desired surface quality is of great importance for the functional behaviour of machines. It is also recognised that machining conditions affects the quality of the operation performed. Such parameters should be carefully selected so as to maximize the economics of manufacturing. D3 steel is widely used as a main material in die manufacturing industries where superior machinability is an important factor. in the present work the DOE(Design of Experiment) have been selected to optimize EDM parameters for minimizing surface roughness during machining of AISID3 steel with kerosene and kerosene with SiC.