The effect of mold surface topography on plastic parat in-process shrinkage in injection molding

Uffe Rolf Arlø, Hans Nørgaard Hansen, Erik Michael Kjær

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

    Abstract

    An experimental study of the effect of mold surface roughness on in-process in-flow linear part shrinkage in injection molding has been carried out. The investigation is based on an experimental two-cavity tool, where the cavities have different surface topographies, but are otherwise identical. The study has been carried out for typical commercial polystyrene and polypropylene grades. The relationship between mold surface topography and linear shrinkage has been investigated with an experimental two-cavity mold producing simple rectangular parts with the nominal dimensions 1 x 25 x 50 mm (see figure 1). The cavities have different surface topographies on one side, but are otherwise identical (see discussion of other contribution factors).
    Original languageEnglish
    Title of host publicationANTEC
    Publication date2003
    Publication statusPublished - 2003
    EventANTEC 2003 Plastics: Annual Technical Conference - Nashville, TN, United States
    Duration: 4 May 20038 May 2003

    Conference

    ConferenceANTEC 2003 Plastics
    CountryUnited States
    CityNashville, TN
    Period04/05/200308/05/2003

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