Poor surface traits, short insert life, high manufacturing costs, and low productivity are associated with the machining of nickel alloys. Cutting fluids have well-known positive and negative effects on machinability performance. As a result, the machining industry has developed green cutting environments such as vegetable oil assisted minimum quantity lubrication (MQL) and cryogenic cooling. Despite the fact that MQL and cryogenic approaches can replace mineral oil-based flooding, their lack of lubrication and cooling properties at high speeds have prompted a search for a new hybrid approach (CO₂ + MQL) that provides adequate cooling/lubrication (C/L). Moreover, as of now, no information concerning the effects of hybrid cooling on milling of Nimonic-80A is existing. To test the viability, the machining of Nimonic-80A under hybrid C/L was compared to other cutting environments (MQL and cryogenic). As crucial machinability factors, temperature, power consumption, surface and subsurface characteristics were thoroughly examined. Hybrid condition curtailed the burr formation, which paves the way for a reduction in specific cutting energy (SCE). The experimental results indicate that the hybrid condition considerably decreases the temperature and SCE by 34–53% and 17–19% in comparison with the MQL condition. Peak widening and intensity reduction were seen in the XRD examination, but no phase transition was found. Smaller grain size shows the superiority of hybrid environment.

表面特性差、刀片寿命短、制造成本高和生产率低与镍合金的加工有关。众所周知，切削液对机械加工性能有积极和消极的影响。因此，机械加工行业开发了绿色切削环境，例如植物油辅助微量润滑 (MQL) 和低温冷却。尽管 MQL 和低温方法可以取代基于矿物油的驱油，但它们在高速下缺乏润滑和冷却特性促使人们寻找新的混合方法（CO ₂ + MQL) 提供足够的冷却/润滑 (C/L)。此外，截至目前，还没有关于混合冷却对 Nimonic-80A 铣削影响的信息。为了测试可行性，将 Nimonic-80A 在混合 C/L 下的加工与其他切削环境（MQL 和低温）进行了比较。作为关键的可加工性因素，温度、功耗、表面和次表面特性都经过彻底检查。混合条件减少了毛刺的形成，这为降低比切割能 (SCE) 铺平了道路。实验结果表明，与 MQL 条件相比，混合条件使温度和 SCE 显着降低了 34-53% 和 17-19%。在 XRD 检查中看到峰加宽和强度降低，但没有发现相变。