Title: Molecular dynamics simulation of vibration-assisted cutting: influences of vibration, acceleration and velocity

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 of the mechanism of application of vibration on the reduction of plastic flow and improvement of machined surface in the micro/nano cutting for three-dimensionally shaped microparts. The molecular dynamics method has been applied to analyse the vibration-assisted cutting. In the simulations, the cutting tool and the workpiece are assumed to be rigid diamond and pure aluminium, respectively. This paper reports the results examined on the effect of the vibration, acceleration and velocity on the reduction of plastic flow and cutting forces. As a result, it was understood that the effect of the vibration on the reduction of both the plastic flow and cutting forces is very much significant compared to that due to acceleration and velocity.

Keywords: vibration; acceleration; velocity; cutting forces; molecular dynamics; simulation; vibration-assisted cutting; vibration-assisted machining; nanomanufacturing; plastic flow; surface quality; nanomachining; micromachining.

DOI: 10.1504/IJNM.2006.011383

International Journal of Nanomanufacturing, 2006 Vol.1 No.1, pp.105 - 116

Published online: 29 Nov 2006 *

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