Effect of Process Parameters on the Surface Roughness of Overhanging Structures in Laser Powder Bed Fusion Additive Manufacturing
By J. Fox, S. Moylan, B. Lane. 2016
352 citations recorded by the source corpus.
Abstract The development of additive manufacturing has allowed for increased flexibility and complexity of designs over formative and subtractive manufacturing. However, a limiting factor of additive manufacturing is the as-built surface quality as well as the difficulty in maintaining an acceptable surface roughness in overhanging structures. In order to optimize surface roughness in these structures, samples covering a range of overhang angles and process parameters were built in a laser powder bed fusion system. Analysis of the surface roughness was then performed to determine a relationship between process parameters, angle of the overhanging surface, and surface roughness. It was found that the analysis of surface roughness metrics, such as Rpc , Rsm , and Rc , can indicate a shift between surfaces dominated by partially melted powder particles and surfaces dominated by material from the re-solidified melt track.
Subfields: Automotive Engineering, Biomedical Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/8766ca93ac2e24b14001a4ac7e1206cde0856dd1
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Citations in the corpus
- Effect of Process Parameters on the Generated Surface Roughness of Down-Facing Surfaces in Selective Laser Melting (2019, background): “However, little research has been devoted to characterize the surface roughness of down-facing surfaces [18,19] and the optimization of parameters specifically for down-facing surfaces is, so far, an unexplored topic.”
- Process defects and in situ monitoring methods in metal powder bed fusion: a review (2017, neutral): “Because of this, out-of-control roughness and surface characteristics represent one kind of defect in PBF studied by different authors (Sames et al., 2016; Fox et al., 2016).”
- Data for: Optimizing Process Parameters of Fused Deposition Modeling by Taguchi Method for the Fabrication of Lattice Structures (2018, neutral): “A previous analysis on the effects of the process parameters of SLM on the roughness of selfsupporting surfaces [19] had limited experimental results and did not show a clear dependency on process parameters.”