2022 Fiscal Year Final Research Report
| Project/Area Number |
20K20980
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 20:Mechanical dynamics, robotics, and related fields
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
難波江 裕之 東京工業大学, 工学院, 助教 (90757171)
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| Project Period (FY) |
2020-07-30 – 2023-03-31
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| Keywords | メカトロニクス |
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| Outline of Final Research Achievements |
The purpose is developing a water 3D printing to transfer ice structures to resin, creating three-dimensional objects with complex internal spaces.
First, we attempted to use the coagulation phenomenon of water by depressurizing it and to create objects in a low-temperature cooling solution. For the former, it was found that the high pressure to maintain the liquid phase resulted in a high velocity of water at the time of discharge, which prevented modeling. In the latter case, the surface energy of the water was so high that the water solidified and was ejected, making molding impossible.
Therefore, a new molding method called the "block assembly method" was developed. This method produces minute rectangular blocks of ice, which are then stacked to form a 3D structure. We succeeded in forming a jungle gym-shaped structure and used it to form a resin structure with flow channels.
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| Free Research Field |
メカトロニクス
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| Academic Significance and Societal Importance of the Research Achievements |
現在の３Dプリンタに共通する大問題の一つはサポート材の除去である．通常，サポート材は機械的に壊すか，熱や溶剤で溶かして除去するが，どの場合も形状が複雑になると容易には除去できない．氷をサポート材あるいはモールドの鋳型として用いれば，常温常圧化で容易に除去できる．人体や環境への負荷もない．本研究によって，たとえば微細流路を内部に有するマイクロリアクタやマクロTAS，従来の方法ではサポート材が除去できず造形不可能だった複雑な３D構造体，等が造形できるようになり，３Dプリンタの造形適用範囲を格段に広げる．
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