6005 a aluminum alloy under the condition of low strain rate, deformation temperature rheological curve has wavy characteristics, with the increase of strain rate, hardening and softening is close to balance, characterized by steady rheological characteristics; Under the condition of high strain rate, the dominant hardening process, reply and hardening process of the competition make the rheological curve presents wavy rising trend.

6082 aluminum alloy under the condition of low strain rate, deformation temperature rheological curve not a cyclical fluctuations; Under the condition of medium strain rate are characterized by steady rheological characteristics; Under the condition of high strain rate appear wavy characteristics.

Two kinds of aluminum alloy are positive strain rate sensitive material, its thermal deformation is the control of thermal activation. The aluminum alloy flow stress under the condition of the thermal deformation is given, the relation between strain rate and deformation temperature.