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Micromachines, Volume 13, Issue 8
August 2022 - 208 articles
Cover Story: Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed fusion (L-PBF). Spatter behavior has an intrinsic correlation with the forming quality because it leads to metallurgical defects and the degradation of mechanical properties. This impact becomes more severe in the fabrication of large-sized parts during multi-beam L-PBF. Therefore, investigations of spatter generation and countermeasures have become more urgent. Although much research has provided insights into the melt pool, microstructure, and mechanical property, reviews of spatter in L-PBF are still limited. This work reviews the literature on the in situ detection, generation, effects, and countermeasures of spatter in L-PBF. It is expected to pave the way toward a novel generation of highly efficient and intelligent L-PBF systems. View this paper
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Micromachines - ISSN 2072-666XCreative Common CC BY license