Fig. 1. The pre-stress laser bending of the high strength aluminium alloy panel

Fig. 2. Geometric model of the high strength aluminium alloy panel and pre-load tools

Fig. 3. Temperature dependent material properties of the 2A12-T351 high strength aluminium alloy

Fig. 4. Experimental scene of the pre-stress laser bending for the high strength aluminium alloy

Fig. 5. Comparison of the load-time curves obtained from the finite element simulation and experiments

Fig. 6. Variations of the strain energy inside the panel during the forming process

Fig. 7. Cloud charts of the strain energy of the panel during the forming process in the temperature and plastic strain fields

Fig. 8. Variation of the energy transformation of the forming panel with the pre-load

Fig. 9. Variation of the energy transformation of the forming panel with the laser power

Fig. 10. Unfolding dimensions of the high strength aluminium alloy integral panel（unit：mm）

Fig. 11. Forming simulation and processing experiment for the high strength aluminum alloy integral panel

Fig. 12. Outer and inner surfaces of the formed 2A12-T351 high strength aluminum alloy integral panel