Graph Theory and Matrix Approach for Machinability Enhancement of Cryogenic Treated Cobalt Bonded Tungsten Carbide Inserts

Cryogenic treatment is a sustainable manufacturing process preferred to improve the properties of material. In present study, effect cryo treated tungsten carbide cobalt bonded insert (WC-Co) measured in terms tool life and surface finish on dry turning high strength AISI4340 steel at different machine parametric conditions. The observations Untreated (UT) Deep Cryo Treated (DCT) inserts were compared. Formation distribution eta phase carbides are verified by Scanning Electron Micrograph (SEM). DCT shows reduction 27.27% wear with an acceptable level finish. Taguchi's coupled Graph Theory Matrix Approach (TC-GTMA) used predict optimum machining condition substantiate results validation experiment conducted found satisfactory.