| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Laser Induced Breakdown Spectroscopy for In-situ Monitoring of Laser Powder Bed Fusion Processing |
| Author(s) |
Justin Krantz, Cody Lough, Ben Brown, Jinyu Yang, David Go, Robert Landers, Edward C. Kinzel |
| On-Site Speaker (Planned) |
Justin Krantz |
| Abstract Scope |
Laser powder bed fusion is the most widely used powder-based additive manufacturing process. A major hurdle for laser powder bed fusion processes is identification and addressing of flaws in the as-built part. In-situ monitoring of laser powder bed fusion processes allows for identification of flaws and the potential to address them during the build. A particular emphasis is placed on the ability to capture information about the material composition through laser-induced breakdown spectroscopy. An ultrafast pulsed laser is coaligned with a continuous wave process laser for simultaneous application. The ultrafast laser is used to probe the melt pool of in-process laser powder bed fusion build, creating a plasma from which signals are collected. The use of the ultrafast laser minimizes adverse effects on the melt pool during processing. This process allows for superior emission collection capabilities compared to techniques such as optical emission spectroscopy. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |