About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
Presentation Title |
Laser Induced Breakdown Spectroscopy for Material Identification in Laser Powder Bed Fusion Processing |
Author(s) |
Justin Krantz, Gonzalo Reyes-Donoso, Cody Lough, Ben Brown, Brian Moorhead, Robert Landers, Edward C. Kinzel |
On-Site Speaker (Planned) |
Justin Krantz |
Abstract Scope |
Material composition is a driving factor in structural formation for metal additive manufacturing. Spectroscopy is a useful method of identifying local composition changes in a manufactured part. The application of an ultrafast laser to drive laser-induced breakdown spectroscopy (LIBS) allows for a higher signal-to-noise ratio to be achieved and provides the ability to record at high frequencies. The application of LIBS to laser powder bed fusion is demonstrated, and the ability to identify materials based on the spectroscopy signal is shown. The ability to spatially map the composition of the material is also demonstrated. The addition of high-frequency photodiodes provides the opportunity to collect data in-line and in-process, which creates the potential to perform process mapping during the printing process to identify defects that form based on local composition variation. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |