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Laser Stereolithography with Long Fiber Oriented along Shape of Functional Part

Research Project

Project/Area Number 16K06003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Production engineering/Processing studies
Research InstitutionChiba University

Principal Investigator

NAKAMOTO Takeshi  千葉大学, 大学院工学研究院, 教授 (30198262)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords光造形 / 炭素繊維 / 紫外線硬化樹脂 / 配向 / 繊維強化材料 / 繊維強化 / 特殊加工
Outline of Final Research Achievements

The material of parts produced by laser stereolithography is a photopolymer. The photopolymer parts must be reinforced by particles or short fibers in order to increase the mechanical strength of the parts. However, the strength of the reinforced photopolymer parts are not so increased because the photopolymer exists between the reinforcement materials. Therefore, it is necessary to reinforce from one end to another end of the part and to reinforce along the shape of the part by long fibers. The purpose of this research work is to develop the process. Carbon fiber is selected as the long fibers because the carbon fiber has high tensile strength and flexibility. The fabricating conditions for example, the laser beam power, drawing speed of the beam and the thickness of the photopolymer were examined. Several examples were produced using these conditions.

Academic Significance and Societal Importance of the Research Achievements

ナイロンや熱可塑性樹脂などを素材として連続した炭素繊維で強化した製品を3Dプリンタで製作する報告はいくつかあり,その一部は製品化されている.一般に熱可塑性樹脂を用いた造形法に比べて光造形法のほうが微小な部品の造形に適しており造形精度は高い.本論文の方法は熱可塑性樹脂などを素材とする造形法よりも小さい寸法の部品への強化という点ではより効果的であると期待できる.さらに光造形法によって形状に沿って製作した部品は他に例がないため,今後,その機械的な特性を検討することは学術的にも高い意義がある.

Report

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

    (3 results)

All 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] Laser Stereolithography with Carbon Fiber Oriented along Shape of Part2019

    • Author(s)
      中本剛,朝倉隆文
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 85 Issue: 2 Pages: 202-207

    • DOI

      10.2493/jjspe.85.202

    • NAID

      130007590371

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2019-02-05
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 炭素繊維を製品形状に沿って配向した構造物の光造形2018

    • Author(s)
      朝倉隆文,中本剛
    • Organizer
      2018年度精密工学会春季大会学術講演会
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
  • [Presentation] 炭素繊維を製品形状に沿って配向した構造物の光造形(造形物中の炭素繊維の本数の検討および積層造形)2018

    • Author(s)
      朝倉隆文,中本剛
    • Organizer
      2018年度精密工学会秋季大会学術講演会
    • Related Report
      2018 Annual Research Report

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

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