Investigation and Analysis on Formability of Al1100/St12 Sheet – Considering properties of layers separately

Today's application of two-layer metallic sheet in production of industrial and domestic parts is increased. Their advantages are increasing wear and corrosion resistance, sound and vibration damping, uniform temperature distribution due to different heat expansion coefficients of layers, decreasing spring back and wrinkling and finally reducing weight and cost. Formability of Al1100-St12 sheet is investigated in this paper. Theoretical and experimental studies have been carried out to analyze forming limit diagram (FLD) of Al1100-St12 two-layer sheet. Theoretical results are compared with experimental ones and FLD of two-layer sheet is compared with formability of its metallic components. There is good accordance between theoretical and experimental results and FLD of Al1100-St12 is much better than Al1100.

کلیدواژه ها:

formability ، two-layer sheet ، theoretical and experimental studies