About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Laser Induced Breakdown Spectroscopy for Chemistry and Composition Monitoring of Laser Powder Bed Fusion Processing |
Author(s) |
Edward C. Kinzel, Justin Krantz, Gonzalo Reyes-Donoso, Robert Landers, Ben Brown, Cody Lough |
On-Site Speaker (Planned) |
Justin Krantz |
Abstract Scope |
A major challenge in Laser Powder Bed Fusion (LPBF) process development is the ability to perform analysis in-process. In-situ monitoring provides the opportunity to identify flaws and address them during the build process. One process of particular interest is Laser Induced Breakdown Spectroscopy (LIBS). This process can provide the potential to collect data about material composition with the potential to react to this information. A femtosecond laser is coaligned with a CW process laser for simultaneous use during the LPBF process. The ultrafast laser is used to probe the melt pool of in-process LPBF builds, creating plasma from which signals are collected with minimal impact on the melt pool. This process allows for superior emission collection capabilities compared to techniques such as optical emission spectroscopy. The Department of Energy’s Kansas City National Security Campus (operated and managed by Honeywell Federal Manufacturing Technologies, LLC under contract number DE-NA0002839) funded this work. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |