Experimental Investigations of Canola Oil Lubrication with Nano-Crystalline MoS2 Additives in CNC End Milling of Aluminium Alloy

Since the past few decades, manufacturing operations including the milling of metals use various types of coolants and lubricants. These are composed of chemicals and other pollutant factors, which are very dangerous and hazardous to the nature and human. And also the increasing demands of high productivity for the machining requirements leaves no choice but to use high cutting velocity along with higher feed rates. These renewed machining conditions leads to the generation of high cutting temperatures, which reduces tool life with poor product quality. Hence there is a need to find the alternative coolants and lubricants, which reduces the above factors in addition to machining cost. In general lubrication is attributed for the solving of heat generation related issues at the cutting zone. Due to some inherent properties like cooling, lubrication and functions like flushing of chips, the cutting fluids leads to better performances during milling operations. As the conventional way of using fluids are less efficient during high production machining, it is observed that nano fluids have better properties in terms of transfer of heat from the cutting zone. Economic aspects are considered during the use of nano fluids by applying the phenomenon of Minimum quantity lubrication (MQL). The work is an attempt in the direction of using nano fluids as alternative lubricants in milling operations by the study of tool temperature and quality of surface finish.