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| Temperature field for improvement of internal quality of stretching round billet |
| QIU Ping XIAO Hong |
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Abstract Base on rigid-plastic theory, using a coupled thermo-mechanical model, the stretching process of a circular section billet is simulated by means of FEM software Deform-2D. Through the distribution of internal stress fields of stretching round billet, it is revealed that the shear stress field is the main factor to induce Mannesmann��s effect. The simulation results show that a reasonable distribution of the temperature field may improve the interior quality of the circular section billet in the stretching process.
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Received: 23 April 2008
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Corresponding Authors:
QIU Ping
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2009, Vol. 16 
