1. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. Henan Key Engineering Laboratory for Anti-Fatigue Manufacturing Technology, Zhengzhou 450001, China;
3. School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China;
4. Beijing Key Laboratory of Precision/Ultra-Precision Manufacturing Equipments and Control, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
5. State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
On the premise of weak substitutability and being often used to manufacture key components of aeroengine, high-efficient and high-quality machining of difficult-to-cut materials such as titanium alloys is facing challenges. Aiming at the problems of poor surface integrity and service performance of titanium alloy Ti–6Al–4V, high-speed cutting tests of titanium alloy Ti–6Al–4V were carried out, and the improvement of high-speed ultrasonic vibration cutting technology on the surface integrity and the wear resistance of machined surface was analyzed, thus providing theoretical support for high-quality machining of titanium alloy Ti–6Al–4V. The results show that compared with conventional cutting, high-speed ultrasonic vibration cutting effectively reduces the surface roughness, and improves surface strength, surface residual compressive stress and wear resistance of titanium alloy Ti–6Al–4V.