Nickel-based super alloys have low thermal conductivity, thus a large amount of heat is generated during machining, which reduces the superiority of the machined component and life of the cutting tool. Existing work is focused on the usage of ionic liquids as lubricants in turning Inconel 825. Taguchi’s L₂₇ orthogonal array was used to detect the results of turning process factors, such as cutting speed, feed, depth of cut and environmental conditions, in three different machining environments: dry, oil under minimum quantity lubrication and ionic liquids with minimum quantity lubrication (IL). The output parameters considered were surface roughness, cutting temperature, tool wear and chip thickness. A multicriteria decision making (MCDM) method executed through the combination of an analytical hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS) was used for optimization. The results showed that ionic liquids with the minimum quantity lubrication (MQL) method minimized the surface roughness by 88 %, reduced the cutting temperature by 74 %, reduced the chip thickness by 89 % and minimized tool wear. Furthermore, the SEM study revealed the wear on a tool in turning Inconel 825 in dry, oil and ionic liquid environments. The outcomes obtained through analysis clearly prove the importance of employing ionic liquids with minimum quantity lubrication to reduce surface roughness, cutting temperature, tool wear and chip thickness.

镍基超级合金的导热系数低，因此在加工过程中会产生大量热量，从而降低了加工部件的优越性和切削工具的寿命。现有工作集中于使用离子液体作为车削Inconel 825的润滑剂。Taguchi的L ₂₇在三个不同的加工环境中，正交阵列用于检测车削过程因素的结果，例如切削速度，进给，切削深度和环境条件：干，最小润滑下的油和最小润滑（IL）的离子液体。考虑的输出参数为表面粗糙度，切削温度，刀具磨损和切屑厚度。通过分析层次结构过程（AHP）和类似于理想解决方案（TOPSIS）的顺序偏好技术的组合执行的多准则决策（MCDM）方法用于优化。结果表明，采用最小量润滑（MQL）方法的离子液体使表面粗糙度最小化了88％，切削温度降低了74％，切屑厚度减少了89％，并使刀具磨损最小化。此外，SEM研究表明，在干燥，油和离子液体环境中车削Inconel 825时工具磨损。通过分析获得的结果清楚地证明了使用少量润滑的离子液体来降低表面粗糙度，切削温度，刀具磨损和切屑厚度的重要性。