MQL Turning of EN-8 Steel Using Plant-Based Lubricant and its Performance analysis with Wet and Dry Turning

In this research work, Micro Mist Fluid ST-2020, plant-based cutting fluid has used as a cutting fluid. This cutting fluid has used under MQL mode for machining of EN-8 steel. The results obtained from MQL machining using the plant-based cutting fluid have been analyzed and compared with dry machining and conventional wet machining. During wet machining, a stable milky white emulsion with water of soluble cutting fluid had applied. The tiny droplet size of fluid generated during MQL provided lesser cutting forces and better surface finish. Hence MQL may be a better option for eliminating fluid waste while maintaining the benefits of using a lubricant. Therefore, the application of MQL will reduce the use of cutting fluids, but the application of plant-based lubricants will eliminate the use of petroleum-based lubricants. Petroleum lubricants cause environmental pollution and may cause health risks to workers who come in direct contact with the cutting fluid.