Effect of Co Content and WC Grain Size on Wear Resistance of Micro Carbide Endmills in High Speed Milling of Graphite

Abstract:

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Micro carbide endmills suffer severe abrasive friction and impact wear in high speed milling of graphite. This paper focused on the study of the effect of Co content and WC grain size on the tool wear resistance of micro carbide endmills in high speed milling of graphite. The tool wear morphologies of cutting tools were examined at the initial wear stage and severe wear stage. The results showed that the abrasive resistance of micro carbide endmill increased with the decrease of Co content and WC grain size. The best impact resistance can be obtained with medium Co content and smaller WC grain size. The fine-grained carbide 0.2WC-8%Co is considered as the optimum tool material for high speed milling of graphite.

Info:

Periodical:

Key Engineering Materials (Volumes 407-408)

Edited by:

Fan Rui, Qiao Lihong, Chen Huawei, Ochi Akio, Usuki Hiroshi and Sekiya Katsuhiko

Pages:

604-607

DOI:

10.4028/www.scientific.net/KEM.407-408.604

Citation:

L. Zhou et al., "Effect of Co Content and WC Grain Size on Wear Resistance of Micro Carbide Endmills in High Speed Milling of Graphite", Key Engineering Materials, Vols. 407-408, pp. 604-607, 2009

Online since:

February 2009

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Price:

$35.00

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