2023 Fiscal Year Final Research Report
Construction of a continuous fiber placement design method suitable for additive manufacturing with cellulose nanofibers and evaluation of fabricated objects
| Project/Area Number |
20K04227
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 18030:Design engineering-related
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| Research Institution | Meiji University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | アディティブマニュファクチャリング / 曲面積層 / 連続繊維 / セルロースナノファイバー / 生分解性 / 双腕ロボットアーム / 造形パス |
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| Outline of Final Research Achievements |
For a manufacturing method to apply cellulose nano-fiber (Cellulose Nano-Fiber, CNF), which has a bio-degradable property, to mechanical parts, an additive manufacturing method with continuous fibers and plastics was focused on. The design method for placing the continuous fiber was established, and the fabrication method was developed with evaluation of fabricated objects. In the design method, two approaches for placement of continuous fibers were considered. One is to use slicing from shape models, and another is to use computational design. In the fabrication system, multi-axis device with robot arms was developed and it realized curved-surface deposition. Additionally, composite materials with CNF continuous fibers and poly-lactic acid were developed and the fabrication by the developed system with the developed materials was realized.
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| Free Research Field |
設計工学、生産システム工学
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| Academic Significance and Societal Importance of the Research Achievements |
積層造形（Additive Manufacturing, AM）は従来の加工方法では実現できない形状での設計を可能にすることから革新的な製品やサービスのキーテクノロジーとして大きな期待がされている。その一つに軽量設計など少ない材料による設計を可能にすることがあり、環境負荷を減らす製品設計が期待されている。本研究では、生分解性材料を有し、高強度なCNF材料用いたAMの技術開発を行った。これは従来にない程度に生分解性材料で高強度に自由な形状を実現するAM技術として学術的に意義あり、また環境負荷軽減の設計推進に寄与することから、社会的にも大きな意義がある。
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