A Novel Technique to Achieve Sustainable Machining System

Turning is one of the most fundamental and indispensable processes of metal removal in industry. Increasing pollution-preventing initiatives globally and consumer focus on environmentally conscious products has put increased pressure on industries to minimize or eliminate the use of cutting fluids. The use of solid lubricant in machining operation is one of the most effective strategies in this direction to achieve sustainable machining system. In the present research work, the feasibility of a novel approach for developing a new generation of machining technique namely High Pressure Minimum Quantity Solid Lubricant experimental set-up has been envisaged with an aim to improve process performance and to eliminate the use of cutting fluids in machining operation. A detailed comparison has been made with wet, dry, MQL machining operation to assess the process performance on the basis of tool wear and surface finish. The results indicate that HP-MQSL mixture at a small and constant flow allows better penetration of the mixture into the tool-work and tool-chip interface, thus providing reduction on the tool wear and surface roughness more effectively than a wet, dry, and MQL machining at high speed conditions, thereby to achieve sustainable machining system.