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Function creation in additive manufacturing using Mg alloys and dissimilar metals with wire arc discharge

Research Project

Project/Area Number 19H02038
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Sasahara Hiroyuki  東京農工大学, 工学(系)研究科(研究院), 教授 (00205882)

Co-Investigator(Kenkyū-buntansha) 阿部 壮志  埼玉大学, 理工学研究科, 助教 (60756469)
中本 圭一  東京農工大学, 工学(系)研究科(研究院), 准教授 (90379339)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywordsアディティブ・マニュファクチャリング / マグネシウム合金 / 異種金属造形 / モニタリング / 冷却
Outline of Research at the Start

アーク放電を熱源としてワイヤ材料を溶融し積層する独自の高能率な付加加工(アディティブ・マニュファクチャリング(AM),3Dプリンティング)の手法において,軽量高比強度金属であるマグネシウム(Mg)合金による形状造形を実現し,さらにその表層に耐熱性や耐食性・耐摩耗性に優れた異種金属造形を行い,新たな機能性を付与する新加工方法を開発する.

Outline of Final Research Achievements

In additive manufacturing utilizing wire material and arc discharge, a magnesium alloy, which is a lightweight and high specific-strength metal, can be applied for fabrication with high precision by active cooling with solid block contact to the supplied molten metal. Furthermore, on the surface layer, the possibility of deposition of dissimilar metals such as Ti alloy and Al alloy, which have superior heat resistance, corrosion resistance and wear resistance compared to Mg alloy, was investigated. The metallographic state and bond strength at the interface were also clarified. Although the metallurgical bonding strength of these combinations is low due to the formation of intermetallic compounds at the interfaces between dissimilar metals, the additive process itself is feasible.

Academic Significance and Societal Importance of the Research Achievements

Mg合金は軽量で比強度が高いが,粉末状態では粉塵爆発や燃焼が生じやすいため,粉末材料を用いる一般的な金属AMでの造形が難しい.ワイヤー・アーク方式と固体接触による冷却により,安全かつ精度良くMg合金を造形できることを示した.Mg合金とTi合金,Al合金の異種金属積層における界面での金属間化合物生成の状態を明らかにし,Mg合金表面の硬度の高い金属を積層することができた.金属間化合物の状態は,投入エネルギ量と造形物の温度状態により大きな影響を受けることを明らかにした.低入熱条件では接合状態は悪いが,成分希釈のないTi合金を積層できることを明らかにした.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (6 results)

All 2022 2021

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

  • [Journal Article] Improvement of Cooling Effect and Dimensional Accuracy of Wire and Arc Additive Manufactured Magnesium Alloy by Active-Cooling-Based Contacting Copper Blocks2022

    • Author(s)
      Nagamatsu Hideaki、Sasahara Hiroyuki
    • Journal Title

      Journal of Manufacturing and Materials Processing

      Volume: 6 Issue: 2 Pages: 27-48

    • DOI

      10.3390/jmmp6020027

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Mechanical properties and joining state in wire and arc additive manufacturing of Al-Si/Mg-Al-Zn dissimilar alloys2021

    • Author(s)
      T.Shimada, H. Nagamatsu, T.Abe, .Kaneko, H.Sasahara
    • Organizer
      Leading edge manufacturing in 21st century, JSME
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure and welding penetration of wire and arc additive manufactured Pure Titanium and A5356 dissimilar alloys using cold metal transfer welding2021

    • Author(s)
      H.Nagamatsu, H.Sasahara, T.Abe
    • Organizer
      euspen’s 21st International Conference & Exhibition
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 構造的強度を有したTiとAl合金の異種金属積層法の開発2021

    • Author(s)
      中島健太郎,笹原弘之,永松秀朗,薄井雅俊,阿部壮志
    • Organizer
      精密工学会第29回学生会員卒業研究発表講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 銅ブロック補助材によるWAAM積層手法がAZ31積層壁の形状精度・積層能率・強制冷却に与える影響2021

    • Author(s)
      永松秀朗,笹原弘之,李俊霆,木下淳
    • Organizer
      2021年度精密工学会春季大会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ワイヤ+アーク放電によるアディティブ・マニュファクチャリングを用いたMg合金-Al合金積層におけるAl合金Si添加量の影響2021

    • Author(s)
      嶋田大祥,永松秀朗,阿部壮志,金子順一,笹原弘之
    • Organizer
      2021年度精密工学会 第28回学生会員卒業研究発表講演会
    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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