• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2026, Vol. 62 ›› Issue (9): 394-407.doi: 10.3901/JME.260431

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Mechanical Model and Experimental Verification for Minimum Quantity Lubrication Turning Titanium Alloy Ti-6Al-4V with Biomimetic Textured Tools Empowered by Ultrasonic

WANG Xiaoming1, LIU Jixin2, YANG Min1, LIU Mingzheng1, ZHANG Yanbin1, LI Benkai1, WU Huijun3, XU Yingjie4, BIE Qingfeng5, YIN Xianxin5, HOU Yali1, LI Changhe1,6   

  1. 1. Key Lab of Industrial Fluid Energy Conservation and Pollution Control, Ministry of Education, Qingdao University of Technology, Qingdao 266520;
    2. College of Intelligent Manufacturing, Qingdao Huanghai University, Qingdao 266427;
    3. School of Civil Engineering and Transportation, Guangzhou University, Guangzhou 510006;
    4. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014;
    5. Hisense Air-Conditioning Co., Ltd., Qingdao 266736;
    6. Qingdao Jimo Qingli Intelligent Manufacturing Industry Research Institute, Qingdao 266200
  • Received:2025-05-19 Revised:2025-10-09 Published:2026-07-08

Abstract: Titanium alloy is a crucial metallic material indispensable for the main structure of aircraft and engine components. In the mechanical manufacturing process of titanium alloy parts, cutting is a typical processing method. However, insufficient effective infiltration of lubricant at the interface between the tool and the workpiece during continuous turning and excessive cutting force lead to severe tool wear, which are the main bottlenecks in its machining. The turning process of ultrasonic-energized bionic texture tools with minimum quantity lubrication is expected to solve the problem of tool wear during titanium alloy cutting. Nevertheless, the material removal mechanism and mechanical behavior of the new process are still unclear. Based on this, a mechanical model for material removal in the turning process of UVT-NMQL is established. The material removal characteristics of ultrasonic parameters such as instantaneous cutting thickness, instantaneous cutting speed, instantaneous shear angle, and instantaneous tool-chip contact state are clarified. A technical route for cutting force prediction under multiple working conditions is constructed, and the influence laws of input parameters and cutting speed on the cutting force are analysed. Under four experimental conditions of dry cutting, NMQL, T-NMQL, and UVT-NMQL, the cutting forces per unit area of material removal for the titanium alloy Ti-6Al-4V material are 2 504.18 N/mm2, 2 255.85 N/mm2, 2 074.71 N/mm2, and 803.67 N/mm2, respectively. Under the UVT-NMQL condition, the prediction model and the experimental results show that a consistent trend of change. When the cutting speed increased, the cutting force increased, and the average deviation of the model is 7.46%. The prediction model of turning force for UVT-NMQL established based on the material removal mechanism can provide theoretical guidance and technical support for both the industrial and academic fields.

Key words: cutting force, minimum quantity lubrication, ultrasonic vibration, textured cutting tools, mechanical model

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