About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
In-Situ Ultra-Fast Laser Processing in LPBF for Surface Quality Improvement and Defect Removal |
Author(s) |
Gonzalo Reyes-Donoso, Justin Krantz, Cody Lough, Ben Brown, Robert Landers, Edward Kinzel |
On-Site Speaker (Planned) |
Gonzalo Reyes-Donoso |
Abstract Scope |
Laser Powder Bed Fusion (LPBF) provides the flexibility to fabricate complex components; however, the manufactured parts often require substantial post-processing, which is limited for internal surfaces and complex shapes. Experimental studies are conducted on an LPBF system containing a fiber laser for processing and a femtosecond laser for in-situ spectroscopy and ablation. Process maps for laser ablation and polishing of stainless-steel 3D printed surfaces are generated. Experimental studies are conducted to determine part contour improvements using layer-by-layer contour ablation and contour surface effects of using the femtosecond laser for powder processing. We explore using the femtosecond laser for layer defect repair by removing material pockets via ablation. The Department of Energy’s Kansas City National Security Campus funded this work.
*The Department of Energy’s Kansas City National Security Campus is operated and managed by Honeywell Federal Manufacturing & Technologies, LLC under contract number DE-NA0002839.
NSC-614-6141 04/2024 Unclassified Unlimited Release |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |