Study on Cutting Parameters of MQCL Hard Milling of Hardox 500 Steel Using A12O3 Nano Cutting Fluid
Tran Minh Duc†, Tran Quyet Chien‡, Ngo Minh Tuan†, Tran The Long†,*, Tran Bao Ngoc†‡
†Department of Manufacturing Engineering, Faculty of Mechanical Engineering, Thai Nguyen University of Technology, Thai Nguyen, 250000, Vietnam
‡Mechanical workshop, Thai Nguyen University of Technology, Thai Nguyen, 250000, Vietnam
†‡Faculty of Automotive and Power Machinery Engineering, Thai Nguyen University of Technology, Thai Nguyen, 250000, Vietnam
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Low machinability and high cutting temperature generated from cutting zone when machining difficult-to-cut material are still the huge challenges that are necessary to be solved to improve economic and technical effectiveness but still have to retain the environmental friendliness. The utilization of nano cutting fluid for MQCL (NFMQCL) technique has been considered a novel solution to overcome these problems and has gained the growing interests among the researchers all over the world, and this method is also suitable for the sustainable modern industry. This work aims to study the hard milling efficiency of Hardox 500 steel under MQCL conditions using Al2O3 nano cutting oil. Analysis of variance (ANOVA) was used to study the influence of the nanoparticle concentration, cutting speed and feed rate on surface roughness Rq. The obtained results indicated that the uses of NFMQCL can significantly improve the machinability of Hardox 500 steel and carbide inserts. The application of vegetable oil in hard machining can be enlarged by suspending appropriate nanoparticles. The effects of the input machining parameters and their interactions were also studied to provide technical guides for further studies.