Akademik Veri Yönetim Sistemi
The International Conference of Materials and Engineering Technology, Gaziantep, Türkiye, 6 - 09 Ekim 2025, ss.325, (Özet Bildiri)
Additive
manufacturing (AM) has emerged as a transformative production technology,
enabling the fabrication of complex geometries and customized components,
particularly in industries such as aerospace, defense, biomedical, automotive,
and energy. The design flexibility offered by AM provides significant
advantages, especially in producing intricate structures that are difficult to
achieve using conventional manufacturing methods. Among AM-compatible
materials, AlSi10Mg alloy stands out due to its high specific strength,
excellent thermal and electrical conductivity, and low density. However, the
layer-by-layer nature of Laser Powder Bed Fusion (L-PBF) often results in poor
surface quality and insufficient mechanical properties. Therefore,
post-processing methods are essential to enhance the surface integrity of
AM-produced parts.
In this study, the cold spraying (CS) process was applied to improve the surface properties of AlSi10Mg samples manufactured by the L-PBF technique. The samples 100×50×5 mm3 in dimensions were fabricated using Aconity MIDI L-PBF machine and characterized using optical microscopy and a non-contact profilometer. Subsequently, Ti6Al4V powders (15–53 µm in diameter) were deposited onto the samples using a cold spray system under the following process parameters: air temperature of 460 °C, air pressure of 7 bar, powder feed rate of 24.9 g/min, and nozzle distance of 5 mm. The spraying process was performed at three different traverse speeds (10, 20, and 30 mm/s) to examine the influence on surface roughness. In the continuation of the study, post-spray surface measurements were taken and compared with the measurements obtained in AM part production.