Abstract
In this study a new simplified three-dimensional numerical method and the associated computer program have been developed to simulate non-axisymmetric extrusio n processes. To define the die geometry for non-axisymmetric extrusion, the area mapping technique has been used. A stream-lined die surface was used to minimize the total extrusion pressure. The extrusion of square, hexagonal and ‘T’ sections from round billet has been both simulated and explored experimentally using a model material. The computed results for the cross-sectional grid distortion have been found to be in good agreement with the experimental results. Computational results will thus be valuable for the designing of tool geometries and the corresponding processes.
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