Dry and MQL Milling of AISI 1045 Steel with Vegetable and Mineral-Based Fluids

The use of mineral-based cutting fluids in machining has the drawback affecting environment and industries are under pressures to reduce its favor cleaner productions. In this regard, vegetal-based can be a superior alternative, provided they improve technical outcomes. milling process, dry is commonly performed, however, application using minimum quantity lubricant (MQL) method proven advantageous when compared with machining. Furthermore, midst availability several market, testing their individual performance ascertain potential effectiveness for particular application. This study examined performances two vegetable-based one oils applied by MQL method, followed comparison amid end AISI 1045 steel TiAlN-coated cemented carbide inserts. temperature, forces, power consumption, workpiece surface roughness, tool life, wear mechanisms were chosen as output parameters. experiments conducted speeds (150 200 m/min) feed rates (0.07 0.14 mm/tooth), constant axial (1 mm) radial depths cut (25 mm). temperature was measured K-type thermocouple soldered part an infrared camera. monitored Fluke 435 energy analyzer, force components Kistler dynamometer. worn inserts inspected scanning electron microscope (SEM) analyze mechanism. MQL-assisted notably lowered increased tools’ lives. However, did not reflect any significant effect on force, or roughness. Among all analyzed conditions, abrasive mechanism dominated, damaging edges, flank, rake surfaces tools. addition, adhesive diffusion also observed.