GREEN CUTTING FLUIDS AND THEIR SUPPLY TECHNIQUES USED IN MACHINING OPERATIONS

In the modern manufacturing environment numerous challenges are in front of the manufacturers and researchers, this will lead to advance the various techniques. The present review summarizes the sustainable development in the field of coolants and lubricants used in the various metal cutting operations. Cutting fluid used for lessening the warmth, which is produced in the primary and secondary shear zone due to the lapping of tool and work piece throughout the machining operation. Industries are spending nearly quarter of its annual profits in cutting fluids but still there is failure in the work piece quality and surface finish. The large volume of cutting fluids influence on worker's respiratory system and skin allergies. This paper reviews the recent development of different types of cutting fluids and its applications. The essential function of cutting fluids are its cooling effect and it should be act as a thermal barrier between tool and work piece in the operation. The effective lubrication at cutting zone decreases the coefficient of friction and indirectly reduce the temperature at the mating surfaces of tool and work piece. This review also presents the development of cutting fluid systems in chronological order till the present and also delivers the techniques like coolant less cutting, MQL and cryogenic cooling. These techniques are effectively reducing the quantity of cutting fluid used in machining and also increase the cutting performance