A novel self-lubricating phenolic resin-bonded grinding wheel is developed, wherein the nanosized lubricant complex of dialkyl pentasulfide (RC2540) and β-cyclodextrin (β-CD) is used as filler. The morphology and thermo-gravimetric (TG) of the complex particles in the phenolic resin are analyzed. The mechanical properties of the complex-filled grinding wheels with different filling contents are determined and the grinding performance of the wheels are investigated under different filling content and grinding parameter (wheel speed, work piece speed, and depth of cut) conditions. The RC2540 releasing and self-lubrication mechanisms of the clathrate compound in the grinding process are studied. Results indicate that the lubricant complex does not be destroyed during the curing process of the phenolic resin. The tensile strength and hardness of the wheels can meet the practical application conditions when filler contents are less than 20%. Under the same grinding conditions, the grinding force and grinding temperature of the wheel filled with 10 wt% complex are about 40% and 35% lower than those of the ordinary wheel, respectively. During the grinding process, the lubricant additive (RC2540) in the complex is found to be released and the releasing additive works together with the β-CD to form a lubricating layer on the grinding surface, which makes the abrasive tools own self-lubrication and anti-wear performance and consequently improve the surface quality.
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