Abstract
As a typical representative of green lubrication/cooling mode, minimum quantity lubrication (MQL) is widely recognized by the industry for its excellent machining performance. However, the oil mist generated from oil-based MQL machining process has a direct impact on the ambient air quantity and then does harm those who permanently work in this environment. To alleviate this defect, a novel lubrication strategy named magnetic minimum quantity lubrication (mMQL) allocated with water-based Fe3O4 nanofluid as cutting fluid was proposed. The effect of different magnetic induction on the kinetic viscosity and atomization performance of water-based Fe3O4 nanofluid was investigated. The deposition property of water-based Fe3O4 nanofluid droplets produced by mMQL and LB-2000 vegetable oil droplets produced by MQL were compared, and the corresponding oil mist concentrations (PM10, PM2.5) were also measured. Eventually, the machining performances of water-based Fe3O4 nanofluid mMQL and LB-2000 vegetable oil MQL applied in milling of 430 stainless steel were compared. Results exhibited that water-based Fe3O4 nanofluid presented higher kinetic viscosity and larger droplet size under higher magnetic induction intensity. Water-based Fe3O4 nanofluid mMQL with magnetic induction intensity of 60–100 mT displayed lower PM10 and PM2.5 concentrations, tool flank wear value, milling force, and surface roughness value in comparison with LB-2000 vegetable oil applied in MQL. This water-based Fe3O4 nanofluid used in mMQL showed higher kinetic viscosity and atomized larger droplet-size and thus presented further deposition quantity, which demonstrated alternative cutting performance and lessened the oil mist particles floating in the operating environment.
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This study was financially supported by the Ningbo Natural Science Foundation with the project number of 202003N4190, General scientific research projects of Zhejiang Provincial Department of Education with the project number of Y202043602, and National Natural Science Foundation of China with the project number of 51775507.
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Conceptualization: Tao Lv, Xuefeng XuMethodology: Tao Lv, Xuefeng Xu, WZOriginal draft writing: Tao Lv, Chengcheng NiuInvestigation: Tao LvReview: Xuefeng Xu, Aibing Yu, Xiaodong HuLanguage editing: Tao Lv, Aibing YuSupervision: Tao Lv, Xuefeng XuFinancial support: Tao Lv, Xuefeng Xu
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Lv, T., Xu, X., Yu, A. et al. Ambient air quantity and cutting performances of water-based Fe3O4 nanofluid in magnetic minimum quantity lubrication. Int J Adv Manuf Technol 115, 1711–1722 (2021). https://doi.org/10.1007/s00170-021-07231-y
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DOI: https://doi.org/10.1007/s00170-021-07231-y