Comparison of metal flow in un-lubricated direct and indirect extrusion of aluminium alloys
Source abstract
Abstract
The main differences between metal flow in indirect and direct extrusion are described on basis of information achieved from modern FE-simulation coupled with experiments using internal grid patterns inside the metal. It is shown that deformation inside the extrusion is indeed different in the two cases. The well-known dead zone present ahead of the die in the direct process, for instance, is replaced by an intensive shear zone in indirect extrusion. The implications the differences have on the total deformations inside the extruded rod are also discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgy and Material Forming · Powder Metallurgy Techniques and Materials · Microstructure and mechanical properties
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References (4)
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1. P. H. Schweissguth. Der Vorgang des Fliessens in gepressten Messingblock beim hydraulischen Spritzen von Stangen, Z. VDI, 62 (1918) no.20, 281–286, 305–310.
2. W. Dürrschnabel. Der Materialfluss beim Strang-pressen von NE-metallen (Literaturübersicht). Metall, 22, 1968: Part 1; no.5, 426–437, Part 2; no.10, 995–998, Part 3; no.12, 1216–1218.
3. Johnson, W., Sowerby, R. and Venter, R. D. Plane Strain Slip Line Fields for Metal Deformation Processes, Pergamon Press, Oxford, 92–104, 1982.
4. H. Valberg. Applied Metal Forming; Including FEM-analysis, Cambridge University Press, 2010.10.1017/CBO9780511801907 ↗