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Building strategy for quality assurance of built part based on understanding the phenomenon in powder bed fusion

Research Project

Project/Area Number 21K03790
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionKanazawa University

Principal Investigator

Furumoto Tatsuaki  金沢大学, 設計製造技術研究所, 教授 (60432134)

Co-Investigator(Kenkyū-buntansha) 阿部 諭  金沢大学, 設計製造技術研究所, 研究協力員 (30882584)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords粉末床溶融結合法 / 金属粉末 / 高速度カメラ / 温度測定 / スパッタ / ヒューム / 再利用粉末 / プラズマ / モニタリング
Outline of Research at the Start

金属粉末を用いた付加製造法である粉末床溶融結合法では,レーザ照射部から発生するスパッタ・ヒュームが造形不具合を誘発する主要な因子であり,品質を保証した造形物の製作を妨げる要因となっている.そこで,造形物の品質保証技術確立に向け,造形最小単位である粉末の溶融・凝固様相を明らかにし,プロセス不安定化の主要因であるスパッタ・ヒュームの発生機構を解明する.そのために,高速度カメラによるレーザ照射部の可視化と温度分布測定,照射部周辺の気流解析,造形環境因子による造形特性の変化を調べる,そして,各因子の影響を明らかにしてプロセス安定化をもたらす造形条件設定指針を構築する.

Outline of Final Research Achievements

Melting and solidification of metal powder around the laser-irradiated area during a laser-based powder bed fusion process was observed using a high-speed camera to establish the building strategy for the quality assurance of built part, and the influence of laser conditions, powder characteristics, and building environment on the scattering of spatter and fume was investigated. As results, the principal building conditions affecting the built part quality and the scattering of spatters and fumes were identified. In addition, the building experiment was performed based on the established building strategy, and the restraining of deformation and the improvement of mechanical properties of built part was achieved.

Academic Significance and Societal Importance of the Research Achievements

付加製造法で得られた部品が社会実装されない要因の1つは,造形物の品質保証が難しく,熱源による入熱条件,使用する材料の特性,造形環境など考慮すべき造形条件因子が多いことに加え,各因子が相互に影響を及ぼすために造形現象の理解が困難なためである.本研究では,粉末床溶融結合法の溶融池周辺で生じる粉末挙動について,考え得る全ての条件因子を検討し,造形不具合の主因の1つである溶融池から飛散するスパッタやヒュームを抑制する造形戦略を構築した.これらは,造形物の品質保証を実現するための条件設定指針の確立に寄与でき,粉末床溶融結合法だけでなく,他の付加製造法で同様の造形戦略を構築することに応用できる.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results) Presentation (11 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Effect of Particle Size Distribution of Metal Powder on Powder Bed and Building Characteristic in Metal-Based Powder Bed Fusion with Laser Beam2024

    • Author(s)
      HIGASHI Naoya、FURUMOTO Tatsuaki、YAMAGUCHI Mitsugu、NIU Jing、KUWABARA Kosuke
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 90 Issue: 1 Pages: 126-131

    • DOI

      10.2493/jjspe.90.126

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2024-01-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental Investigation of Spatter Particle Behavior and Improvement in Build Quality in PBF-LB2023

    • Author(s)
      Yoshida Mitsuyoshi、Furumoto Tatsuaki、Sakuma Kazuaki、Kawasaki Kai、Itagaki Kazuyuki
    • Journal Title

      International Journal of Automation Technology

      Volume: 17 Issue: 4 Pages: 335-345

    • DOI

      10.20965/ijat.2023.p0335

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2023-07-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of Oxygen Concentration in Building Environment and Oxidation Extent of Maraging Steel on Spatter Generation Behavior in Powder Bed Fusion2023

    • Author(s)
      Yamaguchi Mitsugu、Tsubouchi Kotaro、Kamimoto Asako、Yamada Shinnosuke、Sugiyama Kenji、Furumoto Tatsuaki
    • Journal Title

      International Journal of Automation Technology

      Volume: 17 Issue: 4 Pages: 346-355

    • DOI

      10.20965/ijat.2023.p0346

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2023-07-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Humidity control in laser powder bed fusion using titanium alloy powder for quality assurance of built parts and reusability of metal powder2023

    • Author(s)
      Yamaguchi Mitsugu、Kushima Kotaro、Ono Yushi、Sugai Tomohiro、Oyama Tomohiro、Furumoto Tatsuaki
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 311 Pages: 117817-117817

    • DOI

      10.1016/j.jmatprotec.2022.117817

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Improving Flowability of Metal Powder by Adding Silica Nanoparticles and Its Building Aspect in Powder Bed Fusion with Laser Beam2022

    • Author(s)
      TSUBOUCHI Kotaro、FURUMOTO Tatsuaki、YAMAGUCHI Mitsugu
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 88 Issue: 5 Pages: 415-419

    • DOI

      10.2493/jjspe.88.415

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2022-05-05
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Powder Shear Property on PBF-LB/M Powder Bed Quality of Tool Steels2022

    • Author(s)
      YAMADA Shinnosuke, YAMAGUCHI Mitsugu, FURUMOTO Tatsuaki
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 88 Pages: 795-800

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluating the thermal characteristics of laser powder bed fusion2022

    • Author(s)
      Furumoto Tatsuaki, Oishi Kazushi, Abe Satoshi, Tsubouchi Kotaro, Yamaguchi Mitsugu, Clare Adam T.
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 299 Pages: 117384-117384

    • DOI

      10.1016/j.jmatprotec.2021.117384

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evaluation of spatter particles, metal vapour jets, and depressions considering influence of laser incident angle on melt pool behaviour2022

    • Author(s)
      Tsubouchi Kotaro, Furumoto Tatsuaki, Yamaguchi Mitsugu, Ezura Atsushi, Yamada Shinnosuke, Osaki Mototsugu, Sugiyama Kenji
    • Journal Title

      The International Journal of Advanced Manufacturing Technology

      Volume: 120 Issue: 3-4 Pages: 1821-1830

    • DOI

      10.1007/s00170-022-08887-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] The effect of oxygen in the shielding gas on building properties for laser powder bed fusion of aluminum alloy2023

    • Author(s)
      KUSHIMA Kotaro, FURUMOTO Tatsuaki, ONO Yushi, OYAMA Tomohiro
    • Organizer
      ICMDT2023
    • Related Report
      2022 Research-status Report
  • [Presentation] 金属AM用耐食Ni基合金のリサイクル特性2022

    • Author(s)
      東直哉,古本達明,山口貢,牛晶,小関秀峰,桑原孝介
    • Organizer
      日本機械学会北陸信越支部 2022年合同講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] レーザを用いた粉末床溶融結合時の造形環境最適化に関する研究,酸素濃度および水分濃度がチタン合金造形特性に及ぼす影響2022

    • Author(s)
      久島光太郎,古本達明,阿部諭,山口貢,大野雄史,須貝友裕,尾山朋宏
    • Organizer
      日本機械学会北陸信越支部 2022年合同講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 造形雰囲気中の酸素濃度と粉末床溶融結合特性2022

    • Author(s)
      久島光太郎,古本達明,阿部諭,大野雄史,尾山朋宏
    • Organizer
      第14回日本機械学会 生産加工・工作機械部門講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 耐食Ni基合金を用いたPBF-LB/M造形における金属粉末の粒度分布の影響2022

    • Author(s)
      東直哉,古本達明,山口貢,牛晶,小関秀峰,桑原孝介
    • Organizer
      第14回日本機械学会 生産加工・工作機械部門講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Distinctive gas solutions for sustainable metal additive manufacturing2022

    • Author(s)
      ONO Yushi, FURUMOTO Tatsuaki
    • Organizer
      FORMNEXT 2022, TCT conference
    • Related Report
      2022 Research-status Report
  • [Presentation] Fabrication of release agent supply die with porous structure using metal-based additive manufacturing with laser beam2022

    • Author(s)
      Furumoto Tatsuaki
    • Organizer
      37th International Conference of the Polymer Processing Society
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Melt pool behaviour during laser powder bed fusion process, Influence of laser incident angle on the scattering of spatter particles2021

    • Author(s)
      Tsubouchi Kotaro, Furumoto Tatsuaki, Yamaguchi Mitsugu, Yamada Shinnosuke, Osaki Mototsugu, Sugiyama Kenji
    • Organizer
      LEM21
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 工程分割によるスパッタレ造形法の開発,単ライン造形時のドロップレト評価と最適条件2021

    • Author(s)
      鍜次本翔真,古本達明, 阿部諭,山口貢,橋本洋平,小谷野智広,細川晃
    • Organizer
      2021年度精密工学会北陸信越支部学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナノシリカ粒子添加による金属AM 粉末の流動性改善と造形特性に及ぼす影響2021

    • Author(s)
      坪内光太郎,古本達明,山口貢,阿部諭,細川晃
    • Organizer
      2021年度精密工学会北陸信越支部学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] レーザ照射部の可視化による 金属AMの現象解明に関する研究2021

    • Author(s)
      古本達明
    • Organizer
      プラスチック成形加工学会  第29回秋季大会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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