成果報告書詳細
管理番号20150000000445
タイトル*平成26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 リアクティブ3Dプリンタによるテーラーメイドラバー製品の設計生産と社会経済的な価値共創に関する研究開発(3)
公開日2015/7/18
報告書年度2014 - 2014
委託先名国立大学法人神戸大学
プロジェクト番号P14030
部署名ロボット・機械システム部
和文要約
英文要約Title: Research on Innovative Design/Manufacturing Methodology of Tailor-made Rubber Products and Socio-Economic Value Co-Creation with Reactive 3D printer FY2014 Annual Report
  
The following research results were obtained. (1)The technological survey about IoT based manufacturing approaches, such as Industry 4.0 in Germany or IIC in USA, were carried out, and the advantage of our proposed project was confirmed in terms of the innovative value co-creation concept between providers and receivers. The conceptual specification about tailor-made manufacturing system was summarized as the system structure under mass customization environment within three layered-value chain business model. The basic software agent negotiation mechanism in the tailor-made manufacturing system was proposed. (2)By controlling the ratio between isocyanate and polyol, polyurethane with different chemical structure were synthesized by polyaddition. Infrared spectroscopy was employed for the confirmation of the complete of the polymerization. Polyurethane was in amorphous state judging from X-ray diffraction, and its glass transition temperature was ranged below 0 degrees Celsius, which indicate that the polyurethanes are in rubber state at room temperature. The stress- strain curve of polyurethane are those typical for rubber with their modulus fulfilled the desired values suitable for outer sole of running shoes. Function gradient rubbers were also successfully made. (3)During this term, the several conductive inks were printed on the surface of organic pressure sensor for a smart insole, which tracks the one's steps and/or measure the pressure distribution of the plantar in real-time, for the health care management, and then the quality of the printed electronic wire was examined. The wetting, spreading and the pattern precision of the printed electronic wire have been strongly depended on the ink materials. Further, the polyurea-forming chemical reaction was investigated to develop the new material for 3D rubber printing. The result suggested the rapid reaction of the diamine with an isocyanate group. (4)The viscosity of fluids and the drop size required for double nozzle 3D printer has been investigated. In order to investigate the fundamental reaction in a droplet, the reaction characteristics have been observed in a droplet with the contact diameter of 10 mm. From the results, it was found that the reaction time is very long because two materials are not well mixed in such a large droplet. It was also found that the large strain occurs on the surface of the droplet and on the interface between the droplets and solid plate. These indicate that the micro-scale droplets are required for the smoothness of the products. (5) The online survey has been conducted to explore tailor-made demands and identify three clusters of running shoes users; lead users, semi-lead users, and mass users and each clusters' characteristics. Data were collected through online survey by using the Intage's consumer panel in February, 2015. Of the screened 7681 samples, 4949 responded (response rate: 64.4%). Attributes of shoes for tailor-made needs were analyzed.
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