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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2863-2874
Number of pages12
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume77
Issue number779
Publication statusPublished - Dec 1 2011

Fingerprint

Wear resistance
Coatings
Wear of materials
Oxidation
Abrasion
Gases
Nitrogen
Aluminum
Film thickness
Chromium
Titanium
Oxygen
Air

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Wear-resistance of coating films on hob cutting teeth (Intermittent cutting tests with a flytool). / Umezaki, Yoji; Funaki, Yoshiyuki; Kurokawa, Syuhei; Ohnishi, Osamu; Doi, Toshiro.

In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 77, No. 779, 01.12.2011, p. 2863-2874.

Research output: Contribution to journalArticle

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