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本文研究了对环境无害的植物油在AISI O2钢面铣加工最小润滑量(MQL)系统中的可行性,并利用不同的统计方法对切削参数进行优化.用植物油作切削液,试验模式采用Taguchi法.测试结果表明,由于MQL系统的存在,在干燥条件下所有参数下的切削性能都得到了改善.在切削长度为7.5 m,切削速度为100 m/min,MQL流量为100 m/h,进给率0.1 mm/齿的条件下,刀具寿命最长.根据Taguchi分析确定最佳切削参数,并得到试验验证.此外,还采用灰色关联分析法确定了最佳试验参数.对测量的表面粗糙度和切削力进行方差分析,发现最有效的切削参数是进给率.本研究还建立了表面粗糙度和切削力的模型,其精度分别为99.63％和99.68％.有效的磨损机制是磨损和黏附.“,”This study aims to examine the usability of environmentally harmless vegetable oil in the minimum quantity of lubrication (MQL) system in face milling of AISI O2 steel and to optimize the cutting parameters by different statistical methods. Vegetable oil was preferred as cutting fluid, and Taguchi method was used in the preparation of the test pattern. After testing with the prepared test pattern, cutting performance in all parameters has been improved according to dry conditions thanks to the MQL system. The highest tool life was obtained by using cutting parameters of 7.5 m cutting length, 100 m/min cutting speed, 100 mL/h MQL flow rate and 0.1 mm/tooth feed rate. Optimum cutting parameters were determined according to the Taguchi analysis, and the obtained parameters were confirmed with the verification tests. In addition, the optimum test parameter was determined by applying the gray relational analysis method. After using ANOVA analysis according to the measured surface roughness and cutting force values, the most effective cutting parameter was observed to be the feed rate. In addition, the models for surface roughness and cutting force values were obtained with precisions of 99.63％ and 99.68％, respectively. Effective wear mechanisms were found to be abrasion and adhesion.