Additive manufacturing (AM) includes a series of production technologies that build three-dimensional components layer over layer starting from digital CAD models, enabling the fabrication of parts often impossible or too expensive to produce using conventional methods. Additive manufactured lightweight and topology optimized parts are particularly advantageous for aerospace, automotive, biomedical and energy applications. Among AM techniques, Laser Powder Bed Fusion (LPBF) is widely used in metal additive manufacturing to create complex geometries with high precision. The adoption of Design for Additive Manufacturing (DfAM) principles, including functional grading, further enhances the potential of AM by allowing spatial variation of structural properties, optimizing stiffness, strength, and energy absorption of the components.