The isothermal compression bonding deformation of 705/706aluminum alloy laminated materials was carried out on Gleeble-3500hot-simulation machine at 573

7

73Kand 0.01

1

0s

-1

.The hot bonding behavior and hot workability of the materials were analyzed

and the constitutive equation and processing map were established.The results show that in the process of compression deformation of the705/706aluminum alloy laminated materials

the flow stress is decreased with the increase of deformation temperature and increased with the increase of strain rate

exhibiting steady rheological characteristics when the flow stress reaches the peak value

so it is characterized by positive strain rate sensitivity.The deformation activation energy of the laminated materials is about 147.2kJ/mol

which is lower than that of single Al-7.0Zn-2.9Mg alloy.The processing maps with different true strains show that safe deformation zone of 705and 706aluminum alloys bonding deformation is mainly attained at high cladding temperatures

moderate strains and low strain rates.The bonding strains range of 0.2

0

.4

temperatures range of 723

7

48Kand the strain rates range of 0.1

0

.01s

-1

are appropriate for bonding deformation of the 705/706aluminum alloy laminated materials.