Experimental validation of viscous and viscoelastic simulations of micro injection molding process

Alberto Gava, Guido Tosello, Giovanni Lucchetta, Hans Nørgaard Hansen, Andreas Schoth

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The effects of two different rheological models used in the simulation of the micro injection molding (µIM) process are investigated. The Cross-WLF viscous model and the Giesekus viscoelastic model are selected and their performance evaluated using 3D models implemented on two different commercially available software packages. Simulation results are then compared with the experimental µIM process. Validation parameters for the comparison are the flow front position during filling of the micro cavity. They are respectively obtained by applying the short-shots method and the flow-markers method. The µIM part is a polystyrene tensile bar test weighting 20mg and with three µ-features 300µm wide.
    Original languageEnglish
    Title of host publicationProceedings of 67th Annual Technical Conference (ANTEC2009)
    Publication date2009
    Pages1781-1786
    Publication statusPublished - 2009
    Event67th Annual Technical Conference of the Society Of Plastics Engineers 2009 - Chicago, IL, United States
    Duration: 22 Jun 200924 Jun 2009
    Conference number: 67

    Conference

    Conference67th Annual Technical Conference of the Society Of Plastics Engineers 2009
    Number67
    Country/TerritoryUnited States
    CityChicago, IL
    Period22/06/200924/06/2009

    Keywords

    • Micro injection moulding
    • Simulation
    • Viscoelasticity

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