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Examination of the material properties and performance of thin-diamond film cutting tool inserts produced by arc-jet and hot filament chemical vapor deposition

Published online by Cambridge University Press:  31 January 2011

James M. Olson  and
Michael J. Dawes
James M. Olson
Affiliation:
Saint-Gobain/Norton Diamond Film, Goddard Road, Northboro, Massachusetts 01532
Michael J. Dawes
Affiliation:
Saint-Gobain/Norton Diamond Film, Goddard Road, Northboro, Massachusetts 01532
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Abstract

Thin diamond film coated WC-Co cutting tool inserts were produced using arc-jet and hot-filament chemical vapor deposition. The diamond films were characterized using SEM, XRD, and Raman spectroscopy to examine crystal structure, fracture mode, thickness, crystalline orientation, diamond quality, and residual stress. The performance of the tools was evaluated by comparing the wear resistance of the materials to brazed polycrystalline diamond-tipped cutting tool inserts (PCD) while machining A390 aluminum (18% silicon). Results from the experiments carried out in this study suggest that the wear resistance of the thin diamond films is primarily related to the grain boundary strength, crystal orientation, and the density of microdefects in the diamond film.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 7 , July 1996 , pp. 1765 - 1775
Copyright
Copyright © Materials Research Society 1996

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