Title: Molecular dynamics simulation of vibration-assisted cutting: influences of vibration parameters
Authors: Jun Shimizu, Libo Zhou, Hiroshi Eda
Addresses: Department of Systems Engineering, Ibaraki University, 4–12–1 Nakanarusawa, Hitachi, 316–8511, Japan. ' Department of Systems Engineering, Ibaraki University, 4–12–1 Nakanarusawa, Hitachi, 316–8511, Japan. ' Department of Systems Engineering, Ibaraki University, 4–12–1 Nakanarusawa, Hitachi, 316–8511, Japan
Abstract: 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 micro/nano 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 aluminium, 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.
Keywords: vibration assisted cutting; amplitude; frequency; cutting force; molecular dynamics; simulation; plastic flow; surface quality; micromachining; nanomachining; microcutting; nanocutting; diamond cutting tools; aluminium cutting; vibration parameters.
International Journal of Manufacturing Technology and Management, 2006 Vol.9 No.1/2, pp.120 - 129
Published online: 06 Jun 2006 *Full-text access for editors Access for subscribers Purchase this article Comment on this article