Molecular dynamics analysis on microstructure of diamond-turned surfaces

Shoichi Shimada; Ryosuke Inoue; Junichi Uchikoshi; Naoya Ikawa

doi:10.1117/12.215619

2 August 1995 Molecular dynamics analysis on microstructure of diamond-turned surfaces

Shoichi Shimada, Ryosuke Inoue, Junichi Uchikoshi, Naoya Ikawa

Proceedings Volume 2576, International Conference on Optical Fabrication and Testing; (1995) https://doi.org/10.1117/12.215619
Event: International Conferences on Optical Fabrication and Testing and Applications of Optical Holography, 1995, Tokyo, Japan

Abstract

By the use of molecular dynamics computer simulation, a feasibility study is made for the quest of ultimate quality of machined surface attainable in diamond microturning of copper and aluminum with a fine cutting edge under hypothetically perfect machine motion. Based on the analyses, the surface generation process and microstructure of worksurface are well understood from atomistic point of view. In cutting of monocrystalline copper, the worksurface which has nearly perfect lattice structure can be obtained and ultimate surface roughness is estimated to be less than 1 nm. The quality of worksurface of aluminum is worse than that of copper, especially machined by the cutting edge with large radius. In cutting of polycrystalline copper, nanometric distorted layer inevitably remains on worksurface. However, the ultimate surface roughness is estimated to be at the same level as that of monocrystalline copper.

Citation Download Citation

Shoichi Shimada, Ryosuke Inoue, Junichi Uchikoshi, and Naoya Ikawa "Molecular dynamics analysis on microstructure of diamond-turned surfaces", Proc. SPIE 2576, International Conference on Optical Fabrication and Testing, (2 August 1995); https://doi.org/10.1117/12.215619

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