Effects of preform architecture on racetracking in liquid molding

J. Chaneske, K. Jayaraman, David Norman, R. Robertson

    Research output: Chapter in Book/Report/Conference proceedingChapter

    • 7 Citations

    Abstract

    This paper is concerned with preferential edge flow or racetracking, arising in liquid molding. The object of this paper is to understand the effect of preform architecture on the extent of racetracking, in terms of the mechanical characteristics of the preforms. Rectangular preforms with fiber volume fractions of around 0.4 to 0.47 were prepared with precision cutting from two different isotropic woven glass fabrics-Hexcel 7500 and Hexcel 7544. Experimental techniques have been developed for determining the sliding friction characteristics and effective stiffness of these preforms. Mold filling experiments were run in a rectangular mold with known starting edge gaps between the mold wall and the preforms. The injection pressure transients, the wetted area of the preform and the resin front in the edge gap were monitored. Greater sliding friction associated with a greater clamp force in the mold for one of the fabrics led to more controllable racetracking.

    Original languageEnglish (US)
    Title of host publicationInternational SAMPE Symposium and Exhibition (Proceedings)
    PublisherSAMPE
    Volume45
    StatePublished - 2000
    Event45th International SAMPE Symposium and Exhibition - Long Beach, CA, USA

    Other

    Other45th International SAMPE Symposium and Exhibition
    CityLong Beach, CA, USA
    Period5/21/005/25/00

    Profile

    Birth Certificates
    Animal Welfare
    Corticosterone
    Friction
    Molding
    Liquids
    Common Bile Duct Diseases
    Abnormal Erythrocytes
    Acetamides
    Iduronidase
    Cysticercus
    Biogenic Amines
    Genetic Engineering
    Clamping devices
    Resins
    Stiffness
    Volume fraction
    Glass
    Fibers
    Experiments

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemical Engineering (miscellaneous)
    • Building and Construction
    • Polymers and Plastics

    Cite this

    Chaneske, J., Jayaraman, K., Norman, D., & Robertson, R. (2000). Effects of preform architecture on racetracking in liquid molding. In International SAMPE Symposium and Exhibition (Proceedings) (Vol. 45). SAMPE.

    Effects of preform architecture on racetracking in liquid molding. / Chaneske, J.; Jayaraman, K.; Norman, David; Robertson, R.

    International SAMPE Symposium and Exhibition (Proceedings). Vol. 45 SAMPE, 2000.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Chaneske, J, Jayaraman, K, Norman, D & Robertson, R 2000, Effects of preform architecture on racetracking in liquid molding. in International SAMPE Symposium and Exhibition (Proceedings). vol. 45, SAMPE, 45th International SAMPE Symposium and Exhibition, Long Beach, CA, USA, 21-25 May.
    Chaneske J, Jayaraman K, Norman D, Robertson R. Effects of preform architecture on racetracking in liquid molding. In International SAMPE Symposium and Exhibition (Proceedings). Vol. 45. SAMPE. 2000.

    Chaneske, J.; Jayaraman, K.; Norman, David; Robertson, R. / Effects of preform architecture on racetracking in liquid molding.

    International SAMPE Symposium and Exhibition (Proceedings). Vol. 45 SAMPE, 2000.

    Research output: Chapter in Book/Report/Conference proceedingChapter

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