Sheppard, T. and Flitta, I., 2001. Simulation of bridge die extrusion using the finite element method. Materials Science and Technology, 18 (9), 987-994.
Full text available as:
|
PDF
Flitta_Output_4.pdf 474kB | |
Copyright to original material in this document is with the original owner(s). Access to this content through BURO is granted on condition that you use it only for research, scholarly or other non-commercial purposes. If you wish to use it for any other purposes, you must contact BU via BURO@bournemouth.ac.uk. Any third party copyright material in this document remains the property of its respective owner(s). BU grants no licence for further use of that third party material. |
Official URL: http://www.ingentaconnect.com/content/maney/mst/20...
DOI: 10.1179/026708302225004946
Abstract
This communication reviews previous work on the extrusion of hollow shapes and uses a three-dimensional (FEM) solution to predict load-required, temperature of the extrudate and material flow during the process. A comparison with experiments is made to assess the relative importance of some extrusion parameters in the extrusion process and to ensure that the numerical discretisation yields a realistic simulation of the process. The usefulness and limitations of FEM when modelling complex shapes is also discussed. Methods to assess the difficulty of extrusion of hollow extrusions in general are presented. The paper also illustrates the essentials of numerical analysis to assist the reader in the comprehension of the thermomechanical events occurring during extrusion through bridge dies. Results are presented for velocity distribution in the extrusion chamber, iso-temperature contours and pressure/ displacement traces. These are compared with experiments conducted using a 5 MN press. It is shown that the finite element program predicts the pressure requirement: the pressure/displacement trace showing a double peak which is discussed in some detail. The finite element program appears to predict all the major characteristics of the flow observed macroscopically.
Item Type: | Article |
---|---|
ISSN: | 0267-0836 |
Group: | Faculty of Science & Technology |
ID Code: | 933 |
Deposited By: | INVALID USER |
Deposited On: | 04 Jan 2008 |
Last Modified: | 14 Mar 2022 13:06 |
Downloads
Downloads per month over past year
Repository Staff Only - |