Laser Powder Bed Fusion of Powder Material: A Review

Laser powder bed fusion (L-PBF) has drawn increasing interest from enterprises because of its great advantages in additive manufacturing of metal, ceramic, and polymer materials. Although people pay more attention to L-PBF, many problems such as poor density need to be solved urgently. In this article, the commonly used materials of L-PBF are systematically reviewed, and the latest development of the application of L-PBF powder materials is analyzed. The background, application, and molding mechanism of a new type of green material for L-PBF are comprehensively introduced, which shows its great application potential. According to the characteristics of different materials, the methods to improve the quality of L-PBF parts are discussed. The existing problems and prospects of L-PBF are summarized.