Diamond turning of titanium alloy by applying ultrasonic vibration
(1.China Academy of Engineering Physics, Mianyang 621900, China2.Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023, China)
Abstract: To decrease the diamond tool wear and improve the surface quality of the workpieces, ultrasonic vibration was applied to diamond turning of titanium alloy. The effect of vibration parameters on the surface roughness and the tool wear was analyzed. The results show that vibration parameters have great effects on the surface roughness and tools life. Under given conditions, the smaller the vibrating amplitude is, the larger the surface roughness(R_a) is , and the more rapidly the tools is worn. Accordingly, the higher the vibrating frequency is, the smaller the surface roughness is and the longer the tools life is. The surface roughness value (R_a) is less than 0.15μm when vibrating amplitude is 14μm and vibrating frequency is 40kHz in the experiments.
Key words: diamond tool； titanium alloy； ultrasonic vibration