Experimental evaluation of the lubrication properties of the wheel/workpiece interface in MQL grinding with different nanofluids

Abstract Different nanoparticles exhibit various physicochemical properties (e.g., structure and shape), which can influence their lubricating properties. In this work, six nanofluids, namely, MoS 2 , SiO 2 , diamond, carbon nanotubes (CNTs), Al 2 O 3 , and ZrO 2 , were used as minimum quantity lubrication grinding fluids to select the kind of nanoparticles with optimum lubrication performance in grinding nickel alloy GH4169. Experimental results concluded the following: 1) Nanoparticles with spherical or sphere-like molecular structure and nanofluids with high-viscosity demonstrate superior lubrication performances. 2) The polishing effect of nanodiamond particles enhances their surface morphology. 3) The lubricating property of the six nanofluids is described in the following order: ZrO 2 2 2 2 O 3 .

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