Molecular dynamics simulation of vibration-assisted cutting: influences of vibration parameters

摘要

This study aims to clarify the effectiveness and the mechanism of the application of vibration on the reduction of plastic flow and the improvement of machined surface in the microano cutting for three-dimensionally shaped micro-parts. The molecular dynamics method has been applied to the analysis of extremely small amplitude and high-frequency vibration-assisted cutting processes. In the simulations, the cutting tool and the workpiece are assumed to be rigid diamond and pure aluminum, respectively. In this paper, the effect of the vibration parameters, such as frequency and amplitude on the reduction of plastic flow and cutting forces, was mainly examined and clarified. As a natural result, necessitated vibration parameters for the improvement in the machined surface quality were also obtained.