Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 125, Issue -, Pages 573-582Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0924-0136(02)00401-6
Keywords
finite volume; extrusion; forging
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The computational modelling of extrusion and forging processes is now well established. There are two main approaches: Lagrangian and Eulerian. The first has considerable complexities associated with remeshing, especially when the code is parallelised. The second approach means that the mould has to be assumed to be entirely rigid and this may not be the case. In this paper, a novel approach is described which utilises finite volume methods on unstructured meshes. This approach involves the solution of free surface non-Newtonian fluid flow equations in an Eulerian context to track the behaviour of the workpiece and its extrusion/forging, and the solution of the solid mechanics equations in the Lagrangian context to predict the deformation/stress behaviour of the die. Test cases for modelling extrusion and forging problems using this approach will be presented. (C) 2002 Elsevier Science B.V. All rights reserved.
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