• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Microtube Hydroforming Process Utilizing Incrementally Applied Ultra High Pressure

Research Project

Project/Area Number 16K14440
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Material processing/Microstructural control engineering
Research InstitutionTokyo Metropolitan University

Principal Investigator

MANABE Ken-ichi  首都大学東京, システムデザイン研究科, 客員教授 (10145667)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsマイクロ塑性加工 / チューブハイドロフォーミング / マイクロチューブ / 金型変形連成解析 / 型開き挙動 / 高圧繰返し負荷 / マイクロ成形性 / 材料流動促進 / マイクロチューブハイドロフォーミング / 金型変形連成FEM解析 / 高圧繰り返し負荷 / 枝管張出し成形 / 張出し成形高さ / 型開き・型閉じ変形 / 摩擦抵抗 / 成形不良 / 超高圧繰返し負荷 / 潤滑 / プロセスウインドウ / 逐次成形 / 成形限界 / 摩擦軽減 / 結晶粒径 / マイクロチューブフォーミング / 金型変形 / 変形挙動
Outline of Final Research Achievements

In this study, as a method to greatly improve the low hydroformability of metal microtubes, an innovative new idea to allow the die opening (elastic deformation) to be actively permitted when high internal pressure was proposed. For a cross-shape hydroforming process of a long microtube where the influence of frictional resistance is remarkable, macroscopic homogeneous finite element simulation was carried out to confirm material flow behavior into the branch cavity by utilizing the elastic deformation of the die during process which applies a high internal pressure and allowing die opening and die closing processes. As a result, material flow was further improved, and the possibility of significant improvement of hydroformability and reduction of internal pressure could be shown. In the basic experimental work, cross shape forming and T-forming experiments using a micro tube with outer diameter of 0.5 mm, which has not been successful worldwide, have succeeded.

Academic Significance and Societal Importance of the Research Achievements

摩擦係数が増加するマイクロ加工領域で摩擦抵抗を低減させる方法として、金型の弾性応答を利用して型開きを許容し材料流動性を高め、型閉じ過程での摩擦抵抗の向きの変化による材料流動制御の可能性を示した本成果は意義深い。また型開きと型閉じを繰り返す逐次成形に向けた有益な成果である。さらに従来の巨視的均質有限要素法が、肉厚方向の結晶粒数が十分な材料であれば、マイクロ領域での適用可能性を示せたことは学術的に意義深い。社会的意義としては低侵襲医療が叫ばれ医療器具のさらなるマイクロ化が要求されている中、低コストで高機能性をもつ金属製医療器具のマイクロ加工や低侵襲性に効果的な部品開発に寄与する成果といえる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2019 2017 2016

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Factors influencing the forming characteristics in micro tube hydroforming by ultra high-forming pressure2017

    • Author(s)
      Ken-ichManabe, Hideki Sato, Kenta Itai, Marko Vilotic, Kazuo Tada
    • Journal Title

      Procedia Engineering

      Volume: 207 Pages: 2334-2339

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] マイクロチューブハイドロフォーミングシステムの開発と中空部材の十字成形2017

    • Author(s)
      森茂樹、佐藤英樹、板井謙太、真鍋健一
    • Journal Title

      塑性と加工

      Volume: 58 Pages: 72-77

    • NAID

      130005296344

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 局所型開きたわみ変形を許容する金型構造を用いたマイクロチューブハイドロフォーミング2019

    • Author(s)
      張 自成,真鍋 健一,古島 剛,高橋 智
    • Organizer
      日本機械学会関東支部 第25期総会・講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Fabrication of Micro T-shaped Tubular Components by Hydroforming Process2017

    • Author(s)
      Ken-ichi Manabe, Kenta Itai, Kazuo Tada
    • Organizer
      20th International ESAFORM Conference on Material Forming-ESAFORM2017-
    • Place of Presentation
      Dublin, Ireland
    • Year and Date
      2017-04-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Micro T-shaped Tubular Components by Hydroforming Process2017

    • Author(s)
      Ken-ichi Manabe, Kenta Itai, Kazuo Tada
    • Organizer
      The 20th International ESAFORM Conference on Material Forming (ESAFORM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] FAILURES IN MICRO CROSS-SHAPED TUBE HYDROFORMING PROCESS2017

    • Author(s)
      K. Manabe, M. Vilotic, K. Itai and K. Tada
    • Organizer
      14th International Conference on Fracture (ICF 14)
    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Factors influencing the forming characteristics in micro tube hydroforming by ultra high-forming pressure2017

    • Author(s)
      Ken-ichi Manabe, Hideki Sato, Kenta Itai, Marko Vilotic, Kazuo Tada
    • Organizer
      12th International Conference on Technology of Plasticity
    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] FE analysis of micro tube hydroforming process for cross- and T-shaped components2017

    • Author(s)
      Ken-ichi Manabe , Kenta Itai, Hideki Sato, Marko Vilotic, Satoru Takahashi
    • Organizer
      8th International Conference on Tube Hydroforming (TUBEHYDO2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 極細銅管のマイクロハイドロT成形2017

    • Author(s)
      森 茂樹、板井健太、佐藤英樹、多田一夫、真鍋健一、高橋 智
    • Organizer
      第68回塑性加工連合講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] マイクロ銅管のクロス形ハイドロフォーミングにおける成形限界2016

    • Author(s)
      板井謙太、森茂樹、佐藤英樹、多田一夫、古島剛、真鍋健一
    • Organizer
      平成28年度塑性加工春季講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2016-05-20
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi