Development of high performance diamond-coated drills for cutting high silicon aluminum alloy

H. Hanyu, S. Kamiya, H. Odagi, Y. Murakami, M. Saka

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


In machining aluminum alloy that contains a large amount of silicon, highly wear-resistant cutting tools such as diamond coated ones are needed because silicon particles in the matrix of aluminum quickly wear the tools. However, diamond coatings on cutting edges actually debond off easily. In this paper, we examined two possibility in order to improve the adhesion of diamond coatings on cutting edges. One is to optimize the construction of coated drills by changing the shape of cutting edges as well as coating thickness. Another is improvement of the toughness of diamond coatings. By putting together the results obtained, the diamond-coated drills with optimized structure were newly developed. Their performance appeared to be satisfactory in cutting high silicon aluminum alloy.

Original languageEnglish
Pages (from-to)139-146
Number of pages8
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 2002 Jun 24


  • Diamond coating
  • Silicon aluminum alloy
  • Toughness

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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