Influence of Nano-fluid MQL in Machining Processes: A Review

To decrease thermal stresses on the tool-work piece contact, heat produced during any machining operation must be adequately dispersed. This unavoidable heat generation has a negative impact on the surface finish quality, tool wear rate, and morphology of the work piece. To lessen thermal loads and reduce heat during milling, traditional flood cooling systems are often employed. However, this method uses more cooling liquids, which must be properly recycled in order to minimise environmental hazards. Minimum Quantity Lubrication (MQL) is a new approach for reducing lubricant consumption, in which coolant is sprayed during machining to decrease frictional forces and heat production. In machining operations, using a fractional amount of nanofluid in a conventional fluid alongside the nanofluid MQL is an emerging engineering idea. It is anticipated that it may improve heat transfer capacities. This paper investigates the influence of nanofluid MQL on machining parameters such as surface morphology, tool wear, and temperature in various machining operations such as milling, drilling, turning, and grinding. It has also been stated that owing to their better thermo-physical properties, nanofluids may be used effectively in machining operations.