Cengiz, FurkanErguder, Tevfik OguzhanYildiz, Fatih2026-03-262026-03-2620261073-56151543-191610.1007/s11663-025-03867-32-s2.0-105021505214https://doi.org/10.1007/s11663-025-03867-3https://hdl.handle.net/20.500.14901/2829The structural, mechanical, tribological, and other properties of materials fabricated through laser-based powder bed fusion are strongly influenced by the process parameters and manufacturing strategies. Understanding and managing the impact of manufacturing parameters on material qualities is crucial for optimizing production conditions and minimizing waste. This work aimed to detect the most suitable parameters that meet performance criteria for the production of AlSi7Mg alloy using laser powder bed fusion (LPBF). The parameters of laser power, scanning speed, and hatch spacing were examined experimentally. Throughout the experiments, the layer thickness was maintained at the same level. Hatch spacing ranged from 30 to 90 pct, and 10 different laser scanning rates and 5 different laser powers were evaluated. After investigating the structural, mechanical, and tribological properties of the samples, the optimal laser parameters for LPBF were determined. Subsequently, prismatic samples were produced in three different build orientations: 0, 45, and 90 deg, to evaluate the influence of construction angle on the performances. It was observed that variations in LPBF manufacturing parameters play a significant role in determining the relative density, microstructure, surface roughness, hardness, and tribological behavior of the material. Approximately, 99 pct relative density and 114 +/- 3.61 HV0.025 hardness values were obtained in samples produced with optimum parameters.eninfo:eu-repo/semantics/closedAccessArticle