Here, a summary of ongoing process monitoring activities at Penn State is provided, along with a discussion of recent advancements in the area of layer-wise image acquisition and analysis during powder bed fusion processing. Specifically, methods that enable direct comparisons of CAD model, build images, and 3D micro-tomographic scan data will be covered, along with thoughts on how such analyses can be related to overall process quality.
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Abdalla R. Nassar, Edward W. Reutzel, Stephen W. Brown, John P. Morgan, Jacob P. Morgan, Donald J. Natale, Rick L. Tutwiler, David P. Feck, Jeffery C. Banks, "Sensing for directed energy deposition and powder bed fusion additive manufacturing at Penn State University," Proc. SPIE 9738, Laser 3D Manufacturing III, 97380R (6 April 2016);