Study of surface integrity and dimensional accuracy in EDM using Fuzzy TOPSIS and sensitivity analysis

(BQ) Surface integrity and dimensional accuracy remain critical concern in Electrical Discharge
Machining (EDM). The current research work aims at investigating the influence of various EDM process parameters like pulse current (Ip), pulse-on time (Ton), tool work time (Tw) and tool lift time (Tup) on various aspects of surface integrity like white layer thickness (WLT), surface crack density (SCD) and surface roughness (SR). The dimensional accuracy, characterized by over cut (OC), has also been studied in the similar way.
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