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May 13 - 16, 2008 |
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Billet Process and Equipment 098 BP Effect of Alloy Chemistry and Process Parameters on the Extrudability and Recrystallization Resistance of 6082 Alloy Jostein Røyset, Mona Marstrander Rødland, Ulf Tundal and Oddvin Reiso -- Extruded aluminum alloy sections invariably have thin, recrystallized surface layers, due to higher strain rate and temperature near surface formation during extrusion. In AA6082 cast alloys, homogenization temperature, billet preheating temperature and extrusion speed are varied at predetermined levels; effects on recrystallized layer thickness are presented. Variables influencing the material’s dispersoid density show large influence on the recrystallized layer, affecting alloy extrudability. |
