EXPERIMENTAL INVESTIGATION OF MINIMUM QUANTITY LUBRICATION EFFECTS IN TURNING PROCESS WITH NANO FLUIDS USING AISI 4320

In this research work, effect of Minimum Quantity Lubrication (MQL) parameters on the surface roughness of AISI 4320 using nano fluids in turning process. The Multi Walled Carbon Nano Tubes (MWCNT) is used as a nano fluid which tends to increase the tool life and improve the surface quality of the machined product by applying to finish turning of alloys. The turning process outputs such as chip-tool interface temperature, Surface roughness and SEM (to reveal microstructural of the samples) were taken as measurands for evaluating the process efficiency. The performance evaluation of the parameter MQL in turning process of the material was done by relating the outputs at different environment such as different nanoparticle concentration in MQL. The experiment was designed and analyzed with the help of Taguchi design L16 (type – B) method. The lubrication condition plays a deep-seated effect on performance of the product, therefore the timely selection of coolant condition is very vital particularly during cutting of materials with desirable cutting parameters. The surface roughness value of the machined specimen was determined by using surface measurement tester. This study has thus proved that the newly established strategies determined an increase of both tool life and the integrity of machined surface over MQL technique using conventional cutting fluid.