ABSTRACT The nickel-base superalloys have significant usage in aviation, aerospace and other modern industries owing to its valuable engineering properties, which include good corrosion, creep resistance, high strength and elevated temperature resistance. However, its machinability faces extreme difficulty due to inherent characteristics. In this study, one such attempt has been made to enhance the machinability of the specific nickel-base superalloy i.e. Inconel 718 by using eco-benign cooling approaches, i.e., dry and atomized spray cutting fluid system (vegetable oil with graphite + molybdenum disulfide). A set of turning experiments with ceramic inserts were performed on different combinations of cutting parameters under dry and atomized spray cutting fluid conditions. The important machining indices such as tool wear, surface topography, power consumption, machine vibrations, machining cost, and chip morphology were evaluated subsequently with respect to these two cooling conditions. The overall results reveal that the atomized spray cutting fluid technique can be considered as an alternative cooling technique toward the enhancement of the sustainable machinability compared to dry machining.

中文翻译：

---

雾化喷射切削液技术在镍基高温合金车削中的应用

摘要 镍基高温合金具有良好的耐腐蚀性、抗蠕变性、高强度和耐高温性等宝贵的工程性能，在航空、航天和其他现代工业中有着重要的用途。然而，由于其固有特性，其可加工性面临极大的困难。在这项研究中，通过使用生态友好的冷却方法，即干式和雾化喷射切削液系统（含石墨的植物油 + 二硫化钼），进行了一项此类尝试，以提高特定镍基高温合金 Inconel 718 的可加工性. 在干燥和雾化喷射切削液条件下，对不同的切削参数组合进行了一组陶瓷刀片车削实验。重要的加工指标，如刀具磨损、表面形貌、随后针对这两种冷却条件评估了功耗、机器振动、加工成本和切屑形态。总体结果表明，与干式加工相比，雾化喷射切削液技术可被视为一种替代冷却技术，可提高可持续加工性。