Wear-resistance of coating films on hob cutting teeth (Intermittent cutting tests with a flytool)

Yoji Umezaki, Yoshiyuki Funaki, Syuhei Kurokawa, Osamu Ohnishi, Toshiro Doi

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)


The wear resistance of coating films on hob cutting teeth is investigated by intermittent cutting tests with a flytool. The coating films on hob teeth are titanium family ceramics such as TiN, TiCN, TiSiN and TiAlN and aluminum chromium family ceramics such as AlCrN and AlCrSiN. The wear resistance of coating films is shown with regard to film thickness, film materials, ingredient ratio in a film component and the effect of the oxidization on coating films. The oxidization is clarified through the influence on the crater wear propagation through wear cutting tests in atmosphere such as nitrogen gas or oxygen gas. The oxidization of TiAlN coating films produces oxidation on the tool rake face, and this oxidation relates to the amount of crater wear. The increase of aluminum concentration in the TiAlN film improves the crater wear resistance in air, while it has a reverse effect in nitrogen gases, though. The AlCrSiN film has effective resistance against the wear such as abrasive wear and/or oxidization wear. The oxidation film formed on the AlCrSiN film is very firm and this suppresses the oxidations wear on the rake face and works against the abrasive wear advantageously.

ジャーナルNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
出版ステータス出版済み - 2011

!!!All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 産業および生産工学


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