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2005 Fiscal Year Final Research Report Summary

Application of Thin Hard Coating for Micro-Forming

Research Project

Project/Area Number 16560092
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Production engineering/Processing studies
Research InstitutionGifu University

Principal Investigator

DOHDA Kuniaki  Gifu University, Faculty of Engineering Mechanical Systems Engineering, Professor, 工学部, 教授 (90019224)

Co-Investigator(Kenkyū-buntansha) KANETAKE Naoyuki  Nagoya University, Graduate School Engineering, Professor, 大学院・工学研究科, 教授 (00115552)
WAMG Zhrgang  Gifu University, Faculty of Engineering Mechanical Engineering, Associate Professor, 工学部, 助教授 (30244510)
Project Period (FY) 2004 – 2005
KeywordsThin Hard Coating / Tribology / Friction Coefficient / Extrusion / Micro Forming / Brass / High-strength-steel / Ironing
Research Abstract

The most important technology to realize the micro-forming should be the application technique of hard coating such as TiCrN, CrN.TiN, TiAlN and DLC etc.. Results of Tribo-test by ironing-type tribometer and other friction testing machines are as follows.
1) To evaluate the adhesion strength of thin hard coating to die surface, a new testing method for adhesive strength were designed. The principle of the method is very simple.
The cavities made by using the Vickers hardness tester are observed and the appearance of fracture of coating should be the evaluating factors. This method can be used as a simple test instead of the scratch test.
2) DLC-Si shows the lowest friction coefficient. Therefore, DLC should be the best coating for micro forming. But at high temperature, the ability of DLC decreased.
Multi-layered DLC-Si shows better adhesive strength to the surface and are expedite to have better tribo-characteristics such kind of these coating will realize micro/meso forming in the near future.

  • Research Products

    (11 results)

All 2005 2004

All Journal Article (11 results)

  • [Journal Article] Application of DLC Coating to Ironing Die2005

    • Author(s)
      Dohda K., Kubota H., Tsuchiya Y.
    • Journal Title

      2nd JSME/ASME International Conference on Material and Processing 2005 (Seattle, USA) (CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Application of Hard Coatings to Ironing Dies2005

    • Author(s)
      Dohda K., Kubota H., Tsuchiya Y., Taniguchi Y.
    • Journal Title

      8th ICTP 2005 (Verona, Italy) (CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 円錐圧子のスクラッチに伴う硬質被膜の損傷挙動2005

    • Author(s)
      土屋能成, 窪田寛之, 堂田邦明
    • Journal Title

      第56回塑性加工連合講演会(那覇市)講演論文集

      Pages: 301-302

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ビッカース圧痕形状測定による硬質被膜の密着性評価の試み2005

    • Author(s)
      窪田寛之, 堂田邦明, 土屋能成, 谷口幸典
    • Journal Title

      第56回塑性加工連合講演会(那覇市)講演論文集

      Pages: 303-304

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Study of Friction Conditions and the Impact of Low Friction/High-strength Die Coating on the Extrusion of Micropins2005

    • Author(s)
      Krishnan N., Cao J., Dohda K.
    • Journal Title

      International Mechanical Engineering Conference and Exposition, ASME, Orland, USA, 2005

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Study of Friction Conditions and the Impact of Low Friction/High-strength Die Coating in the Extrusion of Micropins, International Mechanical Engineering Conference and Expotition2005

    • Author(s)
      Neil Krishnan, Jian Cao, Kuniaki Dohda
    • Journal Title

      Proceedings if IMECE 2005 : ASME International Mechanical Engineering Conference and Exposition, ASME, Orland, USA

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Application of DLC-Si Coating to Dry Ironing2005

    • Author(s)
      Hiroyuki Kubota, Kuniaki Dohda, Yoshinari Tsuchiya, Yukinori Taniguchi
    • Journal Title

      The Proceedings of the 2005 Japanese Spring Conference for the Technology of Plasticity (in Japanese)

      Pages: 49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Application of DLC Coating to Ironing Die2005

    • Author(s)
      Kuniaki Dohda, Hiroyuki Kubota, Yoshinari Tsuchiya
    • Journal Title

      Proceedings of 8^<th> ICTP 2005, International Conference on Technology of Plasticity, Verona, Italy

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Damage Behavior of Hard Coating by Scratching of Cone-shaped Indentation2005

    • Journal Title

      The Proceedings of the 56^<th> Japanese Joint Conference for the Technology of Plasticity (in Japanese)

      Pages: 301

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Evaluation of Hard Coating Adhesion by Measuring, the Shape of Vickers Indentation2005

    • Journal Title

      The Proceedings of the 56^<th> Japanese Joint Conference or the Technology of Plasticity (in Japanese)

      Pages: 303

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Evaluation of Tribo-characteristics of DLC Hard Coating by Strip-ironing Type Tribo-simulator2004

    • Author(s)
      Kuniaki Dohda, Hiroyuki Kubota, Yoshinari Tsuchiya
    • Journal Title

      The 12^<th> Materials and Processing Conference (M & P2004) (in Japanese)

      Pages: 417

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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