| Citation: | HAN X，SUN Z F，GENG D X，et al. Experiment research on high-speed ultrasonic vibration milling of titanium alloy[J]. Journal of Beijing University of Aeronautics and Astronautics，2023，49（7）：1707-1714 （in Chinese） doi: 10.13700/j.bh.1001-5965.2021.0519
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Conventional milling (CM) causes problems for titanium alloys, such as high cutting forces, large deformation of thin-walled workpieces, low processing efficiency, and severe tool wear due to low cutting speeds. To address these problems, a new method of high-speed ultrasonic vibration milling (HUVM) is adopted to machine titanium alloys. Their surface quality and the cutting force are also examined through experiments. The kinematic equation of HUVM is constructed. An HUVM experimental platform including ultrasonic vibration system, machining system and measurement system is built. Single factor experiments are carried out to explore the effects of CM and HUVM on the surface quality and cutting force. The experimental results show that compared with CM, HUVM could generate more uniform surface structure with increased surface roughness. Unlike CM with residual tensile stress of the machined surfaces, HUVM has residual compressive stress with its value decreasing with the increase of feed per tooth and cutting speed. Moreover, HUVM could reduce cutting force by 32.6%~35.3% compared to CM.
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