To improve the inadequate Infiltration performance during the process of large arc length grinding, this study proposes a novel minimum quantity lubrication (MQL) grinding method based on magnetic traction nano-lubrication (MTN). By utilizing magnetic fields to enhance lubricant wettability in the grinding zone, the proposed approach improves friction-reduction and anti-wear performance in high-temperature and high-friction environments. A simulated grinding platform was established to investigate the tribological behavior of MTN through systematic friction and wear experiments. First, a novel Fe 3 O 4 /graphene magnetic nano-lubricant was synthesized, and the influence of magnetic field strength on its viscosity was investigated. Subsequently, an experimental validation study of the magnetic nanolubricant was conducted, comparing the properties of composite magnetic nanoparticles at different concentrations. Results showed that the friction coefficient curve of the hybrid nano-lubricant was significantly smoother, abrasion mark width was substantially reduced, and surface adhesion was markedly improved. Finally, an optimization study on the ratio of Fe 3 O 4 /GR was conducted to achieve optimal performance and economic efficiency. At a 2:1 Fe 3 O 4 /GR ratio, the lubricant demonstrated the lowest average friction coefficient (0.32), the smallest wear area (6146 μm²), and the best surface roughness (1.64 μm). This method offers a promising strategy and experimental basis for optimizing lubrication technology in precision machining.
Cui et al. (Thu,) studied this question.