Влияние фракции порошка на качество детали при изготовлении методом СЛС

Abstract

This article examines the influence of metal powder particle size distribution (PSD) on the quality of parts produced by selective laser melting (SLM). Recent studies demonstrate that optimal powder fractions (typically 15-45 μm) significantly affect part density, surface roughness, and mechanical properties. Both international and Russian research confirms that fine particles (<20 μm) improve resolution but increase agglomeration risks, while coarse particles (>50 μm) may cause incomplete melting. The work highlights the advantages of bimodal PSD for packing density and analyzes challenges with fine powder applications. Current trends focus on developing standardized characterization methods and predictive models for powder behavior in SLM. The article synthesizes key findings from leading international journals and Russian academic sources, providing practical recommendations for powder selection in industrial SLM applications.