Fig. 1. AlSi10Mg aluminum alloy samples fabricated by SLM

Fig. 2. Parts fabricated by SLM after adjusting forming rate and laser power

Fig. 3. Grain refinement effect of Sc in forming process

Fig. 4. Effect of pre-heat on fatigue properties of SLM samples

Fig. 5. Annealing temperature versus yield strength, tensile strength and fracture strain

Fig. 6. Effect of scanning strategy on tensile properties. (a) Schematic of scanning paths; (b) tensile results

Fig. 7. Crush test of lattice structure

Fig. 8. (a) Schematic of TIG WAAM; (b) sample fabricated by TIG WAAM

Fig. 9. Aluminum alloy structures fabricated by WAAM. (a) Ring; (b) thin wall

Fig. 10. Aluminum alloy sample

Fig. 11. Thin wall structure fabricated by laser-MIG hybrid forming

Fig. 12. Micro-morphologies of different areas of aluminum alloy fabricated by laser-TIG hybrid forming. (a) Top; (b) middle; (c) bottom