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
CountryAustria
CityGraz
Period21/09/201525/09/2015

Cite this

Marhöfer, M., Müller, T., Tosello, G., Islam, A., Hansen, H. N., & Piotter, V. (2015). Validation of precision powder injection molding process simulations using a spiral test geometry. In Proceedings of the Polymer Processing Society Conference 2015 American Institute of Physics. https://doi.org/10.1063/1.4965466