Locus control based on microtexturing model in the elliptical vibration-assisted turning

Abstract

Elliptical vibration-assisted cutting (EVC) is an efficient cutting process in the fabrication of microtextures. In this paper, a novel locus control method for EVC is proposed to fabricate intricate surface textures. First, the mechanism of the EVC microtexturing process is analyzed. Then the detailed ideas and mapping process of the locus control method of EVC according to the model of microtexture are investigated. To realize the mapping process of the locus control, the relationship between the elliptical vibration locus and the discrete points of the microtexturing model is established, while the generation algorithm of excitation inputs for the actual elliptical vibration exciter is developed. A series of EVC microtexturing turning experiments are performed while microtexturing simulation experiments are also conducted. The test results between microtexturing turning and simulation experiments show that the proposed locus control method is satisfactory and can be used to fabricate differently shaped microtextures.