Abstract
This study describes the forming behaviour of work hardening AA5182 sheet alloy at various low temperatures. The material parameters including flow curves, Lankford parameters and forming limit curves were obtained by experimental testing in the temperature range from room temperature to -196°C, which were then used for isothermal forming simulations using the finite element method (FEM). It was found that strength, elongation and forming limits increase with decreasing temperature. The finite element model was validated using deformed Nakajima strips. Numerical results presented in this study demonstrate the potential of cryogenic forming for manufacturing of complex automotive components.
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