Diamond coating on WC-Co and WC for cutting tools

K. Shibuki, K. Sasaki, M. Yagi, Tetsuya Suzuki, Y. Ikuhara

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Cemented carbide (WC-Co) and hot-pressed tungsten carbide (WC) were diamond coated at 850-950°C by the microwave plasma chemical vapour deposition method for use as cutting tools. First, WC inserts without Co were diamond coated utilizing the decarburization method to roughen the surface before diamond deposition. Accordingly, the absence of Co improved the adhesion strength with diamond films, which enabled the machining of Al-Si alloys with a sufficient lifetime. Similarly, the decarburization method was applied to WC-6 wt.%Co inserts and their cutting performance was compared with that of diamond-coated WC. The diamond-coated WC-6%Co inserts showed quite high adhesion strength, enough to cut Al-Si alloys for practical purposes, although slightly inferior to that of diamond-coated WC.

Original languageEnglish
Pages (from-to)369-373
Number of pages5
JournalSurface and Coatings Technology
Volume68-69
Issue numberC
DOIs
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

Diamond
Cutting tools
Diamonds
diamonds
coatings
Coatings
inserts
decarburization
Decarburization
Bond strength (materials)
adhesion
tungsten carbides
Tungsten carbide
Diamond films
diamond films
machining
carbides
Carbides
Chemical vapor deposition
Machining

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Engineering(all)

Cite this

Diamond coating on WC-Co and WC for cutting tools. / Shibuki, K.; Sasaki, K.; Yagi, M.; Suzuki, Tetsuya; Ikuhara, Y.

In: Surface and Coatings Technology, Vol. 68-69, No. C, 1994, p. 369-373.

Research output: Contribution to journalArticle

Shibuki, K. ; Sasaki, K. ; Yagi, M. ; Suzuki, Tetsuya ; Ikuhara, Y. / Diamond coating on WC-Co and WC for cutting tools. In: Surface and Coatings Technology. 1994 ; Vol. 68-69, No. C. pp. 369-373.
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