Parametric Optimization Of TWR On Die Sinking EDM By Using Taguchi’s Approach
Electric Discharge Machining (EDM) is a unconventional machining process where intricate and complex shapes
can be machined. Only electrically conductive materials can be machined by this process. It is capable of machining
geometrically complex or hard materials, that are precise and difficult-to-machine such as heat treated tool steels,
composites, super alloys, ceramics, carbides, heat resistant steels etc. These materials are being widely used in die and mould
making industries, aerospace, aeronautics and nuclear industries. In this work DIN 1.2714 steel is the material used for the
machining purpose and Copper is used as an electrode. It is essential to consider most number of input parameters to get the
better result. In this process Taguchi approach is used to create L27 orthogonal matrix. Experiments were conducted with
the L27 orthogonal array based on the Taguchi method. Moreover, the signal-to-noise ratios associated with the observed
values in the experiments were determined. The purpose of ANOVA to see the individual effect of control factors on MRR
and TWR. In the present work, Optimization of MRR and TWR on EDM conducted by using Taguchi and ANOVA.
Keywords— Die sinking EDM machine, parametric optimization of tool wear rate, Taguchi’s method, ANOVA.