Manufacturing sectors are observing for methods to mitigate the use of cutting fluids for economic and ecological causes. The approach of cryogenic cooling looks to be an effective solution to enrich the process sustainability, as it is non-toxic and substantially increases the life of the tool. In this present research, milling experiments were performed to examine the surface aspects in the machining of Nimonic-80A using PVD-TiAlN/TiN-coated tool under various speed–feed combinations and nozzle orientation of 45°. Cryogenic carbon dioxide in machining enhances the quality of the newly machined face, and the outcomes were correlated with minimum quantity lubrication (MQL) and wet condition. The usage of cryogenic coolant significantly lowers the surface roughness by 38–45% and 13–18% over wet and MQL conditions. The effectiveness of cryogenic cooling curtails the contact between tool and chip, which diminishes the flank wear and chip thickness. Furthermore, it exhibits improved compressive residual stress over the other cooling strategies.

制造业正在观察减少因经济和生态原因而使用切削液的方法。低温冷却方法似乎是一种有效的解决方案，可以提高工艺的可持续性，因为它无毒并且可以大大延长工具的使用寿命。在本研究中，进行了铣削实验，以研究在使用PVD-TiAlN / TiN涂层的工具对Nimonic-80A进行机械加工时，在各种速度-进给组合和45°喷嘴定向下的表面状况。加工中的低温二氧化碳提高了新加工面的质量，其结果与最小量润滑（MQL）和潮湿条件相关。在潮湿和MQL条件下，使用低温冷却剂可将表面粗糙度分别降低38-45％和13-18％。低温冷却的有效性降低了刀具与切屑之间的接触，从而减少了侧面磨损和切屑厚度。此外，与其他冷却策略相比，它具有更高的压缩残余应力。