Investigative Study of Temperature Produced During Turning Operation Using MQL and Solid Lubricants

Abstract

Temperature produced during machining plays a very important role as it affects tool wear and leading to variation of surface roughness. Conventional metal-cutting fluids serve the purpose of reducing the cutting temperature, but, on the other side, it also affect worker’s health and create environmental issues. Hence, in the present work, effort has been made to use MQL and solid lubricants as promising options compared to metal-cutting fluid to analyze its effect on chip–tool interface temperature as output response. Tool–work thermocouple setup is developed and calibrated for the measurement of chip–tool interface temperature. Graphite and MoS2 are applied as solid lubricants, and process performance is measured in the form of power consumption and chip–tool interface temperature and compared with that of dry machining. Experimental results are compared with simulated results to check the adequacy of developed relations. Results showed effectiveness of solid-lubricant-assisted MQL and can be considered as sustainable alternative for lubrication.