Laser Additive Manufacturing of three-dimensional porous structures: Structural design, microstructure, mechanical properties and applications
Ziyong Zhang, Chaojing Yu, Guang‐Kun Ren, Shixun Shen, Hao Yi
Abstract
Three-dimensional porous structures are complex network structures composed of pores that are interconnected or partially interconnected. They are widely utilized in fields such as aerospace and biomedical engineering due to their advantages such as being lightweight, having high permeability, excellent energy absorption and cushioning performance, high specific surface area, and good biocompatibility . However, it isn't easy to control relevant parameters and ensure shape accuracy and manufacturing stability using traditional processing methods because of their relatively complex structures, which greatly limits their application range. Laser Additive Manufacturing (LAM) has the advantages of high design freedom, a high degree of integration between forming and properties, and high precision, enabling the high-quality manufacturing of three-dimensional porous structures. In practical application processes, the combination of three-dimensional porous structures made of different materials and LAM processes has provided great potential for manufacturing fields such as weight reduction of aerospace components and biomedical implants. Based on this, this paper summarizes the relevant research progress from the aspects of the structural design method , process principle, structural performance, microstructure evolution , and application fields of three-dimensional porous structures manufactured by LAM. Finally, the future development of three-dimensional porous structures manufactured by LAM is prospected, hoping to provide a reference for the research in related fields.