Formability of AA6082-T6 at Warm and Hot Stamping Conditions

Forming limit diagrams (FLDs) of AA6082 at warm/hot stamping conditions were determined by using a specially designed test rig. The tests were carried out at various temperatures from 300°Cto 450°C and forming speeds ranging from 75 mm/s to 400 mm/s. The strain was visualized and measured using ARGUS software provided by GOM. The results clearly show that the formability of AA6082-T6 sheet metal, in terms of the limit major strain, increased by 38.9% when the forming temperature was increased from 300°C to 450°C at a speed of 250 mm/s, and increased by 42.4% when the forming speed was decreased from 400 mm/s to 75 mm/s at a temperature of 400°C. It was verified that hot stamping is a promising technology for manufacturing complex-shaped components