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The hot deformation behavior of AA6063 aluminium alloy has been investigated by means of compression tests at temperatures between 400 and 520℃, and strain rates ranging from 2.5 to 10 s-1. Owing to the barreling, the theoretical model on the basis of Hill s general method is used to calculate the flow stress of a cylindrical specimen under uniaxial simple compression so as to consider the friction effect at the die-specimen interface. A method of evaluating the friction coeffcient by combining compression tests with the finite element method is presented. The real flow behavior of AA6063 aluminium alloy can be described with sinh-Arrhenius equation. The hot deformation activation energy Q derived from the corrected stress and strain data is 232.350 kJ/mol.
The hot deformation behavior of AA6063 aluminum alloy has been investigated by means of compression tests at temperatures between 400 and 520 ° C, and strain ranges ranging from 2.5 to 10 s-1. Owing to the barreling, the theoretical model on the basis of Hill s a method of evaluating the friction coeff by combining compression tests with the finite element method is presented. The real flow behavior of AA6063 aluminum alloy can be described with sinh-Arrhenius equation. The hot deformation activation energy Q derived from the corrected stress and strain data is 232.350 kJ / mol.