An overview of functionally graded additive manufacturing (original) (raw)

Functionally Graded Additive Manufacturing (FGAM) is a layer-by-layer fabrication process that involves gradationally varying the material organization within a component to achieve an intended function. FGAM establishes a radical shift from contour modelling to performance modelling by having the performance-driven functionality built directly into the material by strategically controlling the density and directionality of the substance or to combine materials together to produce a seamless monolithic structure. This paper presents a state-of-art conceptual understanding of FGAM, covering an overview of current techniques that can enable the production of FGAM parts as well as identifying current technological limitations and challenges. Possible strategies for overcoming those barriers are presented and recommendations on future design opportunities are discussed.