Cooling performance of turning M2 steel by using copper nano fluids

Minimum quantity Lubrication (MQL) is a technique used to reduce the utilization of cutting liquids in accomplishing a perfect and well-disposed condition. In this examination, the machinability of M2 steel which is hard-to-machine material utilized in key applications was researched under three separate cutting strategies such as dry environment, oil environment, and copper nanofluids with minimum quantity lubrication as environment. The turning tests were conducted utilizing carbide inserts on five separate cutting speed with constant feed and depth of cut. The maximum roughness value obtained with dry condition is 3.75 µm, for oil is 1.7 µm and nanofluid is 0.81 µm. The extreme flank wear values attained is 0.16 mm, 0.055 mm and 0.04 mm for dry, oil and nanofluid conditions. The reduced value of surface roughness (0.45 µm) and flank wear (0.04 mm) were obtained when the machining was performed under copper nanofluid as a coolant.