| 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 |
In-situ Monitoring of Laser Powder Bed Fusion for Production Environments |
| Author(s) |
Jesse Adamczyk, David Saiz, Dan Bolintineanu, Anthony Garland, Ana Love, Hyein Choi, David Moore, Catherine Appleby, Michael Heiden |
| On-Site Speaker (Planned) |
Jesse Adamczyk |
| Abstract Scope |
Additive manufacturing (AM) has shown major growth across the energy, aerospace, and automotive sectors. However, there is a critical need for identification of process-induced defects and porosity. Such determinations typically require expensive and time-consuming techniques that are not amenable to production environments. In-situ monitoring can reduce the need for post-build inspection by leveraging correlated multi-modal data streams to identify off-nominal build events and potential defects. Acoustic signals during builds can be correlated to laser energy density, along with the part surface finish and density. Commanded laser positions linked with layer-wise optical images of the actual laser position enables external validation of correct machine behavior. Additionally, relative heat inputs and spatter behavior can be determined by long-wave infrared imaging. Ultimately, this work highlights how in-situ monitoring can benefit AM production by automatically tracking process deviations and anomalies. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |