Hydrodynamic modelling of hydrostatic magnesium extrusion

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Moodij, E. and Rooij de, M.B. and Schipper, D.J. (2006) Hydrodynamic modelling of hydrostatic magnesium extrusion. In: International Tribology Conference, AUSTRIB, December 3-6, 2006, Rydges South Bank, Brisbane, Australia.

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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.
Item Type:Conference or Workshop Item
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Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/58095
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