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An Alternative Method of Coating Carbide Tools

(Lengthening the Life of Coated Carbide Tools Subject to Vibration during High Speed Cutting)

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Proceedings of the Twenty-Fourth International Machine Tool Design and Research Conference

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Summary

A method of coating cemented carbide tools with ceramics is proposed. Two types of coated tool, each of which has a narrow band of exposed cemented carbide substrate along the cutting edge on the rake face were made. TiN coating by PVD and TiC by CVD were employed. The TiN coated tool with 50 um wide uncoated band performed very well at cutting speed of 4 m/s or less in intermittent cuttings and at 7.5 m/s or more in unstable continuous cutting. In these ranges tool life was improved 3 to 6 times longer than that of a conventionally fully coated tool. SEM observation showed that the proposed coating has no breakable layer at the edge, hardly damages the edge and thus lasts longer.

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Author information

Authors and Affiliations

  1. Precision Engineering Department, University of Gifu, Gifu, Japan

    H. Fujii & S. Itoh

  2. Synthetic Chemistry, University of Gifu, Gifu, Japan

    Y. Takahashi

Authors
  1. H. Fujii
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  2. Y. Takahashi
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  3. S. Itoh
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Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, University of Manchester Institute of Science and Technology, Manchester, UK

    B. J. Davies (Professor of Manufacturing Technology) (Professor of Manufacturing Technology)

Copyright information

© 1984 Macmillan Publishers Limited

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Fujii, H., Takahashi, Y., Itoh, S. (1984). An Alternative Method of Coating Carbide Tools. In: Davies, B.J. (eds) Proceedings of the Twenty-Fourth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-81247-9_24

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