Hydrodynamic modelling of hydrostatic magnesium extrusion

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    Abstract

    Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet to work zone of the process is not considered sharp as in the model of Wilson but as a rounded edge, modelled by a parabolic function. It is shown that this rounded edge has a considerable influence on the predicted film thickness. Furthermore, it is shown that for hydrostatic extrusion of magnesium with castor oil as pressure medium, it is not possible to generate full film lubrication in the work zone of the hydrostatic extrusion process.
    Original languageEnglish
    Title of host publicationPutting tribology to work: proceedings 7th International Tribology Conference, Austrib 2006
    Subtitle of host publicationDecember 3-6, Rydges south bank, Brisbane, Queensland, Australia
    EditorsDouglas Hargreaves
    Place of PublicationBarton
    PublisherInstitution of Engineers (Australia)
    Number of pages6
    ISBN (Print)0-858-25774-2
    Publication statusPublished - 3 Dec 2006
    Event7th International Tribology Conference in Australia, AUSTRIB 2006 - Brisbane, Australia
    Duration: 3 Dec 20066 Dec 2006
    Conference number: 7

    Conference

    Conference7th International Tribology Conference in Australia, AUSTRIB 2006
    Abbreviated titleAUSTRIB
    CountryAustralia
    CityBrisbane
    Period3/12/066/12/06

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  • Cite this

    Moodij, E., de Rooij, M. B., & Schipper, D. J. (2006). Hydrodynamic modelling of hydrostatic magnesium extrusion. In D. Hargreaves (Ed.), Putting tribology to work: proceedings 7th International Tribology Conference, Austrib 2006: December 3-6, Rydges south bank, Brisbane, Queensland, Australia Barton: Institution of Engineers (Australia).