Validation of precision powder injection molding process simulations using a spiral test geometry

Maximilian Marhöfer, Tobias Müller, Guido Tosello, Aminul Islam, Hans N. Hansen, Volker Piotter

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    Abstract

    Like in many other areas of engineering, process simulations find application in precision injection molding to assist and optimize the quality and design of precise products and the molding process. Injection molding comprises mainly the manufacturing of plastic components. However, the variant of precision powder injection molding for the production of metallic and ceramic micro parts raises more and more interest though. Consequently, in the entire field the demand for simulation tools increases constantly, too. The present work reports the material characterization of feedstocks which are used for powder injection molding. This characterization includes measurements of rheological, thermal, and pvT behavior of the powder-binder-mixes. The acquired material data was used to generate new material models for the database of the commercially available Autodesk Moldflow® simulation software. The necessary data and the implementation procedure of the new material models are outlined. In order to validate the simulation studies and evaluate their accuracy, the simulation results are compared with experiments performed using a spiral test geometry
    Original languageEnglish
    Title of host publicationProceedings of the Polymer Processing Society Conference 2015
    Number of pages4
    PublisherAmerican Institute of Physics
    Publication date2015
    ISBN (Electronic) 978-0-7354-1441-9
    DOIs
    Publication statusPublished - 2015
    EventThe Polymer Processing Society Conference 2015 - Messe Congress Graz, Graz, Austria
    Duration: 21 Sep 201525 Sep 2015

    Conference

    ConferenceThe Polymer Processing Society Conference 2015
    LocationMesse Congress Graz
    Country/TerritoryAustria
    CityGraz
    Period21/09/201525/09/2015

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