Author:
Wang Jinshi,Fang Fengzhou,Li Luan
Abstract
AbstractAtomic and close-to-atomic scale manufacturing is the key technology for the production of next-generation devices with atomic precision. As an important approach of mechanical processing, cutting has evolved as a potential candidate to generate an atomically smooth surface; thus, exploring its ultimate capability is significant. In this paper, single-crystal graphite, whose lattice structure and chemical bond property are of representation for demonstration, is selected to study the mechanism of atomic layer removal using molecular dynamics. A localized workpiece, which is dynamically updated on the basis of the tool position, is used to improve the computation efficiency. The principle and bullet points of this modeling method are first introduced, followed by a series of simulations under various undeformed chip thicknesses and tool edge radii. In addition, different potentials for the tool–workpiece interaction are tested, and the effect on the material response is presented. Based on the analysis of deformation, the number of carbon layers removed, and cutting forces, the chip formation mechanism and further understanding of the controllability of cutting at atomic and close-to-atomic scale can be achieved.
Funder
Science Challenge Project
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering,Materials Science (miscellaneous)
Cited by
11 articles.
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