Hydrodynamic modelling of hydrostatic magnesium extrusion

Ellen Moodij, Matthias B. de Rooij, Dirk J. Schipper

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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 languageUndefined
Number of pages6
Publication statusPublished - 2006
EventInternational Tribology Conference 2006 - Rydges South Bank, Brisbane, Australia
Duration: 3 Dec 20066 Dec 2006


ConferenceInternational Tribology Conference 2006
OtherDecember 3-6, 2006


  • IR-58095

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