中文摘要：

微量润滑切削过程中，切削油雾浓度和粒径分布是影响切削环境空气质量的重要变量，而润滑油的雾化效果与切削现场的油雾浓度和粒径分布密切相关。首先分析了微量润滑油的雾化机理，据此建立雾化数学模型，同时基于商用微量润滑喷嘴结构建立仿真模型，进而采用Fluent软件对微量润滑油的雾化过程进行数值模拟，研究供气压力对雾化效果的影响，并进行试验验证。

英文摘要：

During the Minimum Quantity Lubrication （MQL） cutting processes, the oil mist concentration and its particle-size distributions are essential characteristic variables for measuring the ambient air quality. Furthermore, the oil atomization has important effects on the formation of cutting oil mist. In this paper, the atomization mechanism is theoreti- cally analyzed. With the atomization mathematical model established and the geometric model framed basing on the com- mercial MQL nozzle structure, the MQL atomization process is simulated by Fluent. On this basis, the effect of different gas pressure on atomization is analyzed. At last, the calculation results are verified by experiment.