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김수성(Soo Seong Kim),이상익(Sang Ik Lee),김철환(Chul Whan Kim) 대한금속재료학회(구 대한금속학회) 1986 대한금속·재료학회지 Vol.24 No.2
The formability of 0.4mm and 0.6mm thick Al alloy 3003 sheet that had been double cold rolled and annealed was evaluated by analyzing its uniaxial tensile behavior, forming limit curve (F.L.C.), pole figure analysis, and earing behavior. The F.L.C. level of Al alloy 3003 sheet was considerably lower than those of the low carbon steels (Keeler-Goodwin Band). As the thickness of sheet increased, the F.L.C. level of Al alloy 3003 sheet became higher. The experimental strain ratio (R-value) was compared well with the theoretical R-value calculated by the Lee-Oh method, and the cup made an earing in the direction of the high R-value. It was found that the earing height decreased when the mixture of rolling and annealing textures developed.
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