Abstract As a novel machining process, high-speed ultrasonic vibration cutting (HUVC) has been successfully applied for high-speed machining of titanium alloys recently. To sufficiently exploit its cutting advantage over conventional cutting (CC), advanced cooling method should be employed in HUVC. In this research, high-pressure coolant (HPC) was firstly introduced to HUVC process and its influences on cutting performance of HUVC titanium alloy were studied, including tool life and wear mechanism, surface quality, cutting temperature and cutting force. The results showed that when cutting speed is 400 m/min, the tool life in HUVC can reach 7.3 times of that in CC if HPC of 200 bar was applied. Besides, the machined surface quality in a successive cutting process in HUVC was significantly improved by applying HPC. In addition, the temperature in HUVC can be reduced for 55 % at 300 m/min compared to CC. Furthermore, the analysis of wear mechanism showed that HUVC with HPC can successfully suppress the occurrence of adhesion wear.

中文翻译：

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高压冷却液对高速超声振动切割钛合金切削性能的影响

摘要 高速超声振动切削（HUVC）作为一种新型加工工艺，近年来已成功应用于钛合金的高速加工。为了充分发挥其相对于传统切割 (CC) 的切割优势，HUVC 应采用先进的冷却方法。本研究首次将高压冷却液(HPC)引入到HUVC工艺中，研究了其对HUVC钛合金切削性能的影响，包括刀具寿命和磨损机理、表面质量、切削温度和切削力。结果表明，当切削速度为 400 m/min 时，如果采用 200 bar 的 HPC，HUVC 刀具寿命可达到 CC 刀具寿命的 7.3 倍。此外，应用HPC显着提高了HUVC连续切割过程中的加工表面质量。此外，与 CC 相比，以 300 m/min 的速度可以将 HUVC 中的温度降低 55%。此外，磨损机理分析表明，带有 HPC 的 HUVC 可以成功抑制粘附磨损的发生。