Role of powder particle size on laser powder bed fusion processability of AlSi10mg alloy
نویسندگان
چکیده
Laser powder bed fusion (L-PBF) is one of the most promising additive manufacturing (AM) methods which provides an exceptional opportunity to improve existing designs and move toward fabricating fine features complex geometries with higher efficiencies. Considering layer-wise nature this technique, possibility tied ability deposit thin layers in process. Since layer thickness directly dictated by particle size, finer powders are required further enhance L-PBF technique intricate geometries. Accordingly, study aims at investigating processability AlSi10Mg (D50 = 9 µm) using The densification level, surface quality dimensional accuracy final parts investigated a wide range process parameters compared those manufactured commonly used (referred as coarse D50 40 µm). underlying reasons behind different explored from density, quality, microhardness viewpoints through analyzing flowability, packing density optical absorption powders. Moreover, process-microstructure-microhardness relationship assessed detail for both This reinforces idea that utilization processing rather challenging.
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ژورنال
عنوان ژورنال: Additive manufacturing
سال: 2021
ISSN: ['2214-8604', '2214-7810']
DOI: https://doi.org/10.1016/j.addma.2020.101630