Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes

Zhao, Jie and Qin, Yi (2018) Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes. MATEC Web of Conferences, 190. 10005. ISSN 2261-236X

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    Abstract

    To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components. The paper presents the results from the forming of Polypropylene(PP) micro-tubes with outer diameters of 1.3mm and inner diameters 0.6mm, to achieve various reduced inner-features. The study was effected by combining experiment, numerical simulation and SEM analysis. FE simulation was implemented by using the material data obtained from the material characterisation tests. The forming experiment was conducted with a high-precision hot-embossing machine, developed in-house, with automated handling and good reliability and repeatability. The Polypropylene (PP) micro-tubes were successfully formed into the desired features at the temperatures of 60°C and 100°C respectively. The influences of the parameters/factors, such as tool design, temperature, forming pressure and holding time, on the quality of the shaped parts, are discussed in details. Based on this study, it is concluded that PP is an ideal candidate material among the polymeric materials for hot embossing of tubular micro-components, due to its good ductility, low transition temperature and low viscosity.

    Author(s):Zhao, Jie ORCID logoORCID: https://orcid.org/0000-0002-0136-3642 and Qin, Yi ORCID logoORCID: https://orcid.org/0000-0001-7103-4855
    Item type:Article
    ID code:66463
    Keywords:micro-forming, manufacturing process, tool geometry, Engineering design, Industrial and Manufacturing Engineering
    Subjects:Technology > Engineering (General). Civil engineering (General) > Engineering design
    Department:Faculty of Engineering > Design, Manufacture and Engineering Management
    Technology and Innovation Centre > Advanced Engineering and Manufacturing
    Depositing user: Pure Administrator
    Date deposited:07 Jan 2019 10:30
    Last modified:10 Jan 2020 19:53
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/66463
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