Optimizing material removal rate and surface roughness by utilizing Taguchi and TOPSIS approaches

The electric discharge machining (EDM) is mostlysuitable for the in the production today because of its capability to machine hardened materials in very small size with complicated contour and high precision. Nevertheless, the optimization of the parameter of the process mainly MRR and SR is still a challenging. The research presents a thorough parametric study whereby the Taguchi experimental design tool is applied and the method for Order Preference by Similarity to Ideal Solution (TOPSIS) is employed for MRR and SR optimization in EDM machining of H13 grade steel. Experimental factors such as pulse on-time, peak current, and pulse off-time are altered by using orthogonal array (Taguchi L9) design. The MRR and SR will be tested under the varied parameter configurations, and the optimal settings will be identified. Analyzing TOPSIS subsequently, the parameters are ranked according to their potential in actualizing the expected results. The results of this study give useful knowledge regarding the parameters impacting the magnitude of MRR as well as SR machining of H13 steel in EDM environment. The proposed methodology provides really practical approach of process optimization resulting in high efficiency and best surface quality in industrial setting.