| Abstract Scope |
This study compares three water-atomized (WA) metal powders—SS316L, 600, and 740H—to gas-atomized (GA) powders—SS316L and Haynes 282—for laser powder bed fusion (PBF-LB) additive manufacturing (AM). While GA powders are widely used due to their spherical morphology, WA powders are an alternative, but the effects of higher oxygen and more irregular shape must be examined. The powders were characterized using a dynamic image particle analyzer, the Camsizer X2, to measure size and shape metrics. Various flow tests were also conducted via rheometry, rotating drum, and flow meters to evaluate flowability and spreadability. These properties, along with SEM images, were placed into a CNN pipeline to explore how qualitative factors affect flowability and to predict printability in PBF-LB for the WA powders. This talk will include the results of flow tests, images of powders, the CNN pipeline, and the analysis of these findings. |