Abstract:
In this paper, the surface micro-texture morphology of the elliptical-assisted turning is simulated by Matlab. The influence of ultrasonic elliptical vibration assisted turning parameters on micro-texture morphology was studied. It was found that the turning parameters can effectively change the size and arrangement of micro-texture. The surface micro-texture experiment of titanium alloy ultrasonic elliptical vibration assisted turning was designed. The dynamic friction coefficient of the microtextured surface was obtained by a self-made friction experiment device. The effects of feed rate and cutting speed on the friction properties of microtextured surfaces were analyzed. The results show that the dynamic friction coefficient of micro-texture surface increases with the increase of feed rate, and the dynamic friction coefficient of micro-texture surface decreases with the increase of cutting speed. In order to obtain a micro-textured surface with good friction properties, ultrasonic micro-elliptical vibration assisted turning of the surface micro-texture should adopt a lower feed rate and a higher cutting speed. At the same time, the micro-textured surface obtained by the same cutting parameters increases the friction coefficient with the increase of the friction spindle speed in the friction and wear experiment. Therefore, in order to exert the performance of the microtextured surface, the relative rotational speed between the friction pairs should be minimized.