Investigation of Machining Performance of MQL and MQCL Hard Turning Using Nano Cutting Fluids

Cutting fluids used in the metal machining industry have exerted serious impacts on environment and human health. In addition, very high cutting heat forces machining-hardened steels been a growing concern field. Hence, new, eco-friendly cooling lubricating techniques are necessary to study develop. Minimum quantity lubrication (MQL) minimum (MQCL) using nano proven as alternative solutions for difficult-to cut materials while retaining an environmentally friendly characteristic. Accordingly, this paper aims analyze evaluate hard turning efficiency of 90CrSi (60 ÷ 62 HRC) steel MQL MQCL conditions, Al2O3 MoS2 fluids. The 2k-p experimental design analysis variance (ANOVA) were influence input parameters including fluid type, method, nanoparticle concentration, speed feed rate surface roughness. obtained results showed that machinability CNMG120404 TM T9125 carbide tools was improved highest machinable hardness increased from 35 HRC 60 (rising by approximately 71.4 77.1%) nanofluid methods. Furthermore, gives better performance than MQL, exhibits result terms roughness values nanofluid. Feed displays strongest roughness, concentration show low impacts. From these results, technical guidance will be provided further studies methods, well their application practice.