Research on constitutive model of rheological behavior of 7050 aluminum alloy based on metal material of badminton racket frame

In order to improve people ‘s experience of badminton and improve the performance of badminton rackets. The flow stress behavior of 7050 aluminum alloy for badminton racket frame metal material was studied under the conditions of strain rate range of 0,01 ~ 10 s–1 and deformation temperature of 573 ~ 723 K. The true stress-strain curve of 7050 aluminum alloy was obtained. According to the real stress-strain curve, the Arrhenius constitutive model of 7050 aluminum alloy was constructed. The results show that obvious dynamic recovery and dynamic recrystallization occur in the hot compression deformation of 7050 aluminum alloy. The flow stress increases with the increase of strain rate and decreases with the increase of temperature. The theoretical stress value predicted by the constitutive model is fitted with the experimental value, and the correlation is 97,3 %. The constitutive model has high prediction accuracy.