分离型超声波振动车削抑制颤振的实验规律研究

采用功率谱分析技术证实了由Janet Devine现发的分离型超声波振动切削对颤振的抑制作用,并由正交实验设计确定各主要参数对其抑振效果的影响程度。实验给出了切削速度v_o,刀具超声波振动振幅A及其搭配(交互作用)对抑振因子r的影响规律,这一结果与作者在文献^1]2]3]中提出的分离型超声波振动切削消减颤振的理论相吻合。

Experimental Regularities of Suppressing Chatter with Unseparating Type Ultrasonic Vibration Turning(STUVT)

Using the power spectrum analysis technique we prove the characteristic of suppressing chatter in STUVT which was found by Janet Devine（1979）and use the perpendicular testing design to determain the affecting degrees of the main parameters for reducing the effect. This paper gives the affecting regularities on reducing indexr r of some parameters, including the turning speed v_o, the ultrasonic vibration amplitude of the tool tip A and their collocation （v₀ ×A）.These results are verified by the reducing chatter theory of STUVT which was advanced by authors in literatures^1]6]7]