About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Special Session
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Presentation Title |
Effective Registration of Engineered Lattice Geometry: A Comparative Study of Measurement Methodologies |
Author(s) |
Scott C. Jensen, Elliott Jost, Benjamin C. White, Anthony P. Garland, David G. Moore, David J. Saiz, Brad L. Boyce, Bradley H. Jared |
On-Site Speaker (Planned) |
Scott C. Jensen |
Abstract Scope |
While engineered lattices are becoming easier and more common place to fabricate, inspection remains demanding and ambiguous. Each lattice can easily contain hundreds of struts, each of which may exhibit sagging, variations in diameter, variations in profile, crack-like surfaces, fused powder and inconsistent melting. In this study we fabricated over 40 stainless steel 316L FCC lattices using a range of laser power and scan speeds to generate a wide range of process effects during laser powder bed fusion. Each lattice was measured using calipers, optical microscopy and computed tomography (CT) and analyzed using various methods. Physical and optical registration of external struts were compared to both internal and external as captured using CT. The labor requirements for developing and implementing different analytic techniques was then compared to the quality of the metric each produced.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |