Performance of Novel MoS{sub}2 Nanoparticles Based Grinding Fluids in Minimum Quantity Lubrication Grinding

摘要

Molybdenum disulphide (MoS{sub}2) nanoparticles are known to possess exceptional tribological properties. This research evaluates the tribological behavior and performance of novel MoS{sub}2 nanoparticles based grinding fluids in minimum quantity lubrication (MQL) grinding of cast iron. Active MoS{sub}2 nanoparticles were added in low and high concentrations to three commercially available base oils: (1) paraffin oil, (2) CANMIST oil, and (3) soybean oil. To test value addition due to nanoparticles, their MQL grinding performances were compared with that of the pure base oils (without MoS{sub}2 nanoparticles) and with regular water-based grinding fluid using flood cooling (wet) application. The results showed that lubricants with novel MoS{sub}2 nanoparticles significantly reduces the tangential grinding force and friction between the wear flats and the workpiece, increases G-ratio, and improves the overall grinding performance in MQL applications.