| 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 |
Two-color Thermal Imaging of WC-Ni Cermet Melt Pools in Laser Powder Bed Fusion |
| Author(s) |
Guadalupe Quirarte, Alex Gourley, Alexander J. Myers, B. Reeja Jayan, Jack Beuth, Jonathan A. Malen |
| On-Site Speaker (Planned) |
Guadalupe Quirarte |
| Abstract Scope |
Resolving the melt pool temperature distribution in additive manufacturing processes is key to understanding the underlying physics and developing improved process monitoring tools. This project applies a new method to measure dense tungsten carbide (WC)-17 wt.% nickel (Ni) composite melt pool temperatures in laser powder bed fusion (L-PBF) using a high-speed color camera two-color technique. Conventional manufacturing of cermets like WC-Ni is difficult compared to metal alloys, but these materials can have advanced performance and can be made by additive processes. One of the major challenges associated with experimental temperature measurement methods in L-PBF is the accelerated and localized heating and cooling of the process. Measuring the melt pool temperature using conventional infrared imaging techniques or pyrometry lack the temporal and spatial resolution needed for measuring LPBF melt pool temperature profiles. Separate measurements of WC-Ni cermet thermal conductivity enables improved thermal models that are compared with the experimental temperature measurements. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |