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Development of metal-CFRTP multi-material joining technology using special shape electrodeposited film

Research Project

Project/Area Number 20K15045
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26040:Structural materials and functional materials-related
Research InstitutionGunma University

Principal Investigator

Kobayashi Tatsuya  群馬大学, 大学院理工学府, 助教 (00847486)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Keywords異種材料接合 / マルチマテリアル / めっき / CFRTP / ステンレス鋼 / アルミニウム合金 / 引張せん断試験 / ガルバニック腐食 / 疲労試験 / PA6 / 構造材料
Outline of Research at the Start

特殊形状めっき膜を付与した金属と炭素繊維強化熱可塑性プラスチック(CFRTP)における異種材接合技術の確立を目指す。金属とプラスチックの接合はボルト締結が一般的であるが、自動車用途においては省エネルギー化を目的に部材軽量化を実現させるマルチマテリアル接合技術が要求されている。申請者は、金属の接合面に特殊形状めっき膜を生成し、加熱加圧によりプラスチックと接合する手法を検討した。本研究では、めっき膜形状に及ぼす影響因子を明らかにするとともに、ステンレス鋼およびアルミニウム合金とCFRTPの接合に最適なめっき膜形状を接合強度の観点から調査し、高接合強度となる条件を策定する。

Outline of Final Research Achievements

Dissimilar material joining technology is an important element in the multi-materials of automotive structural materials. This study aimed to develop a practical joining technology for dissimilar materials using special shape electrodeposited films. The formation mechanism of Ni-Cu alloy electrodeposited films with fine irregularities was elucidated by electrochemical methods. The effect of Ni-Cu alloy plating bath composition on the joining properties of stainless steel/carbon-fiber-reinforced thermoplastic (CFRTP) and aluminum alloy/CFRTP joints using the Ni-Cu alloy electrodeposited films was determined. Furthermore, the galvanic corrosion behavior between stainless steel and aluminum alloy with the Ni-Cu alloy electrodeposited films and CFRTP was clarified.

Academic Significance and Societal Importance of the Research Achievements

本研究では、樹状構造体を有するNi-Cu合金めっき膜を付与した金属とCFRTPとの接合において、めっき浴組成と接合特性の関係を明らかにしたことで、提案する異種材料接合プロセスに関して知見が得られたものと考える。また、耐食性について、金属とCFRTPを直接接合した場合は金属とCFRTP中の炭素繊維の電位差に起因し金属が腐食されることが問題となるが、対策法を検討した異種材料接合技術に関する報告は少ない。本研究では、金属とCFRTPの腐食挙動を電気化学的に検証し、Ni-Cu合金めっき膜による耐食性の効果を明らかにした。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (20 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Formation of Cu–Ni Alloy Plating Film for Improving Adhesion between Metal and Resin2022

    • Author(s)
      Kobayashi Tatsuya、Kubo Akifumi、Shohji Ikuo
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 63 Issue: 6 Pages: 800-804

    • DOI

      10.2320/matertrans.MT-MC2022002

    • ISSN
      1345-9678, 1347-5320
    • Year and Date
      2022-06-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Joining process of dissimilar materials using three-dimensional electrodeposited Ni-Cu film2021

    • Author(s)
      Kobayashi T.、Shohji I.
    • Journal Title

      Materials and Manufacturing Processes

      Volume: 1 Issue: 9 Pages: 1-8

    • DOI

      10.1080/10426914.2021.1885708

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Three-Dimensional Microstructure Film by Ni-Cu Alloy Electrodeposition for Joining Dissimilar Materials2021

    • Author(s)
      Kobayashi Tatsuya、Shohji Ikuo
    • Journal Title

      Materials Science Forum

      Volume: 1016 Pages: 738-743

    • DOI

      10.4028/www.scientific.net/msf.1016.738

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 特殊めっき膜を用いた金属-CFRTP 接合におけるガルバニック腐食の抑制評価2023

    • Author(s)
      清水憩, 荘司郁夫, 小林竜也
    • Organizer
      Mate2023(Microjoining and Assembly Technology in Electronics)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 三次元構造めっき膜の電気化学的挙動とその応用2023

    • Author(s)
      PHAM THAI ANH, 荘司郁夫, 小林竜也
    • Organizer
      Mate2023(Microjoining and Assembly Technology in Electronics)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Formation of Specially Shaped Plating Film by Nickel Copper Alloy Electrodeposition2022

    • Author(s)
      T. Kobayashi, A. Kubo, I. Shohji
    • Organizer
      2022 International Conference on Electronics Packaging
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] T. Kobayashi, K. Yamazaki, I. Shohji2022

    • Author(s)
      Joining Dissimilar Materials Using Three-Dimensional Electrodeposited Film
    • Organizer
      2022 International Conference on Electronics Packaging
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小林竜也2022

    • Author(s)
      特殊めっき膜を用いた5052アルミニウム合金とCFRTPの異材接合
    • Organizer
      軽金属学会 第143回秋期大会講演
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ni-Cu合金めっき膜を付与した金属とCFRTPとのガルバニック腐食挙動2022

    • Author(s)
      清水憩, 荘司郁夫, 小林竜也
    • Organizer
      日本金属学会2022年秋期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Pham Thai Anh, 荘司郁夫, 小林竜也2022

    • Author(s)
      三次元構造Ni-Cu合金めっきの生成メカニズムの調査
    • Organizer
      日本金属学会2022年秋期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 金属/CFRTPの接合性に及ぼす特殊形状めっきおよび下地めっき成膜プロセスの影響2022

    • Author(s)
      山﨑康平, 荘司郁夫, 小林竜也
    • Organizer
      日本金属学会2022年秋期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 電気化学測定を用いた特殊形状めっき膜の成膜原理と撥水性評価2022

    • Author(s)
      久保瑛史, 荘司郁夫, 小林竜也
    • Organizer
      日本金属学会2022年秋期講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Joining of Carbon Fiber Reinforced Thermoplastic to Metal using Electrodeposited Film2022

    • Author(s)
      K. Yamazaki, I. Shohji, T. Kobayashi
    • Organizer
      Materials Science and Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deposition Mechanism and Water Repellency of Specially Shaped Plating Films2022

    • Author(s)
      A. Kubo, I. Shohji, T. Kobayashi
    • Organizer
      Materials Science and Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 特殊形状めっき膜を用いた金属/CFRTPの接合特性2022

    • Author(s)
      山﨑康平、荘司郁夫、小林竜也
    • Organizer
      Mate 2022(Microjoining and Assembly Technology in Electronics)
    • Related Report
      2021 Research-status Report
  • [Presentation] 特殊形状めっき膜を用いた高撥水化技術の開発2022

    • Author(s)
      久保瑛史、荘司郁夫、小林竜也
    • Organizer
      Mate 2022(Microjoining and Assembly Technology in Electronics)
    • Related Report
      2021 Research-status Report
  • [Presentation] 三次元Ni-Cuめっき膜を用いたCFRTPとステンレス鋼との接合2021

    • Author(s)
      山﨑康平、荘司郁夫、小林竜也
    • Organizer
      日本金属学会2021年秋期(第169回)講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Al プレート上に生成した特殊形状めっき膜の撥水性評価2021

    • Author(s)
      久保瑛史、荘司郁夫、小林竜也
    • Organizer
      日本金属学会2021年秋期(第169回)講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 特殊形状めっき膜を用いた金属とプラスチックの異種材料接合技術2021

    • Author(s)
      小林竜也
    • Organizer
      複合材料懇話会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 特殊形状めっき膜を用いた金属とプラスチックの接合2021

    • Author(s)
      小林竜也、荘司郁夫
    • Organizer
      第134回マイクロ接合研究委員会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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