This paper attempts to model and predict the spring-back for creep age forming of a 7075 AlAlclad alloy using statistical analyses based on a design of experiments method. Time and
temperature were chosen as effective variables for determining spring-back in the creep ageforming process. The D-optimal design of experiments method facilitated statistical analyses and
the extraction of a mathematical model for determining spring-back in the experimental variables
domain. The spring-back of the specimens was calculated using a numerical procedure based on
the pure bending theory. Analysis of the variances for spring-back showed that temperature was
the most effective variable in the creep-age forming process. Additionally, a mathematical model
and the response surface of the spring-back showed that to decrease spring-back, the significant
variables should be in the upper level. The spring-back in the creep age-forming process was
optimized for a 7075 Al-Alclad alloy in the optimum mechanical properties region.