Abstract
The visioplasticity techniques employed to evaluate the strain and strain rate fields throughout the deforming portion of an axisymmetric extrusion are reviewed. Examples are given of the application of these techniques to extrusions exhibiting the usual single maximum flow pattern and to others exhibiting various degrees of an uncommon wavy double maxima pattern. It is shown that there is good agreement for all flow patterns between the positions of the transverse grid lines, final normal strains and final angle of intersection of the horizontal and transverse grid lines calculated from the flow function analysis and those measured directly from the deformed grids. Of significance is that the geometry of the deformation zone varies with the type and degree of flow pattern.
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References
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© 1971 Springer Science+Business Media New York
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Medrano, R., Gillis, P., Hinesley, C., Conrad, H. (1971). Application of Visioplasticity Techniques to Axisymmetric Extrusions. In: Hoffmanner, A.L. (eds) Metal Forming: Interrelation Between Theory and Practice. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1757-3_4
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DOI: https://doi.org/10.1007/978-1-4615-1757-3_4
Publisher Name: Springer, Boston, MA
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