Additive Manufacturing and Influencing Factors of Lattice Structures: A Review

Lattice structures have the characteristics of light weight, excellent heat dissipation and mechanical properties. Because of excellent properties, lattice structures have been widely used in aerospace, automobile manufacturing, biomedical and other fields. At present, additive manufacturing is the mainstream method for manufacturing lattice structures. This study reviews the existing literature on additive manufacturing of lattice structures, introduces manufacturing methods, and summarizes the influencing factors of forming quality. In addition, the topology optimization of the unit cell and the gradient design of the lattice structure are discussed, and the future research direction of the lattice structure is proposed.