Evaluation of subcooled MQL in cBN hard turning of powder-based Cr-Mo-V tool steel using simulations and experiments

Abstract Metal cutting fluids for improved cooling and lubrication are an environmental risk a health workers. Minimizing water consumption in industry is also goal more sustainable production. Therefore, metal emulsions that contain hazardous additives consume considerable amounts of being replaced with delivery systems, like vegetable oils delivered small aerosol droplets, i.e., via minimum quantity (MQL). Since the volume fluid MQL small, capacity not optimal. In order to improve MQL, spray can be subcooled using liquid nitrogen. This paper investigates machining simulations experiments. The provide complementary information experiments, which would otherwise difficult obtain, e.g., thermal behavior tool-chip contact residual strains on workpiece surface. cBN hard turning experiments done powder-based Cr-Mo-V tool steel, Uddeholm Vanadis 8 −10 °C regular at room temperature. forces wear measured from used as calibration factor simulations. After calibration, evaluate effects surface workpiece. good agreement terms chip morphology forces. show there only difference between regarding behavior, forces, or process temperatures. predict substantial plastic strain after machining. deformations shown have significant effect simulated initial pass, outcome has major implications inverse material modeling.