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heet-bulk metal forming is a new class of sheet forming technology with intended three dimensional material flows as bulk forming process. This new technology usually comprises several traditional forming processes, such as drawing, upsetting, ironing, etc. which exhibits different strain states. The flow behaviours of 2024 aluminium alloy sheet in hot tension and compression were paid attention considering the effect of forming parameters including temperature and initial strain rate in this paper. By regression analysis, the values of deformation activation energy of different processes were calculated. To determined reasonable forming parameters for sheet-bulk metal forming, the power dissipation map and instability map were established based on dynamic materials model theory

Flow Behaviour of 2024 Aluminium Alloy Sheet during Hot Tensile and Compressive Processes