May 13 - 16, 2008
Gaylord Palms
Orlando, Florida USA

Extrusion/Die Theoretical

092 TH 
Wednesday, May 14 - 11:30am

Innovative Methodologies to Increase Productivity by Simulating Development of Structure during Extrusion and Solution Soaking

Terry Sheppard -- Bournemouth University, UK

Empirical and physical recrystallization process models indicate that nucleation and growth differ in alloys that are solution-treated/aged subsequent to deformation. Since static recrystallization influences extrudate properties, methodology presented predicts variations. A physical model integrated into Finite Element Method code FORGE studies microstructure changes. Substructure evolution influencing static recrystallization is examined. Hard alloy property improvement with raised extrusion temperature is discussed and theoretically justified.