成果報告書詳細
管理番号20160000000651
タイトル*平成27年度中間年報 SIP(戦略的イノベーション創造プログラム)/革新的設計生産技術 超3D造形技術プラットフォームの開発と高付加価値製品の創出
公開日2016/8/23
報告書年度2015 - 2015
委託先名国立大学法人横浜国立大学
プロジェクト番号P14030
部署名IoT推進部
和文要約
英文要約Summary (super three-dimensional (3-D) fabrication technology platform)

We have worked on a super three-dimensional (3-D) fabrication technology platform and creation of high-value-added products. Our research project consists of five research projects as follows: Project #1 (Development of super 3-D micro/nano fabrication system), Project #2 (Development of omnidirectional microstereolithography system), Project #3 (Development of functional devices using soft and hard 3-D molding), Project #4 (Development of a popular 3-D fabrication system), Project #5 (Open innovation based on popular 3-D fabrication systems). The details of main results are as follows.

Project #1 (Development of super 3-Dmicro/nano fabrication system)
We have constructed a 3-D fabrication system using a femtosecond pulsed laser and a spatial light modulator for the development of ultra high-speed fabrication system. To achieve ultra-high speed fabrication, we used a contour scanning method with a 3-D hollow model produced by our original software. In experiments, it was demonstrated that the contour scanning method could shorten the total fabrication time of a conventional solid model by more than 60 percent.
In addition, a doughnut laser beam was utilized for ultra-fast fabrication by modulating the phase distribution of the laser beam with the spatial light modulator. In experiments, a large-scale bunny model (height: 50 mm) was fabricated within 14 minutes. The fabrication time was about one-third of that of conventional method using a tightly focused laser beam.

Project #2 (Development of omnidirectional microstereolithography system)
We have developed an omnidirectional microstereolithography system using optical fibers supported by a robotic arm. A cone-like structure with smooth surface was successfully fabricated by using this fabrication system.

Project #3 (Development of functional devices using soft and hard 3-D molding)
For the development of 3-D artificial livers. a microneedle array was fabricated by microstereolithography. In preliminary experiments, it was demonstrated cell detachment from the gold surface by electrochemical method. In the next step, the gold-plated microneedle array will be used for making artificial vessels.

Project #4 & #5 (Development of a popular 3-D fabrication system and open innovation)
We have developed a popular 3-D fabrication system using a laser diode (wavelength: 405 nm) for open innovation. The fabrication system was introduced into Kanagawa Industrial Technology Center on October 30, 2015. Four companies were selected as the first trial users. One company tried to make 3-D molds for nanoimprinting. Several 3-D molds such as microneedle array on stripe pattern film and micro dome array on dot pattern film were fabricated. The complicated 3-D molds will be applied to functional microdevices in medical and biological researches.
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