Microcutting of steel,copper and zinc: A comparative study |
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| Authors: | LJ Bredell JF Prins |
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| Affiliation: | Department of Physics, University of Pretoria, Pretoria 0002 South Africa;De Beers Diamond Research Laboratory, P.O. Box 916, Johannesburg 2000 South Africa |
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| Abstract: | The microcutting of copper, zinc and steel was performed in the speed range 5–55 m s?1 using a single pyramidal diamond point with an apex angle of 90°. It was found that harder materials may plastically deform more than softer materials during cutting owing to the difference in crystal structure. Cutting efficiency is also governed by the bonding energy and dislocation dynamics within the workpiece. |
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