About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Melt Pool Temperature Measurement Across Multiple Metal AM Processes through Application of Two-Color Thermal Imaging |
Author(s) |
Jack L Beuth, Alexander Myers, Jonathan Malen |
On-Site Speaker (Planned) |
Jack L Beuth |
Abstract Scope |
Over the past two years, the authors have developed two-color thermal imaging methods which yield high resolution thermal field measurements that are independent of material emissivity. This talk will review multiple applications of the method that include laser powder bed fusion, electron beam powder bed fusion, and powder fed directed energy deposition. In the powder bed processes high speed imaging is used and a careful balance must be struck between long frame exposure times capturing sufficient emissions and short frame exposure times needed to capture rapid melt pool movement. In DED processes, conventional speed color imaging is possible and real-time monitoring and control is feasible. In all processes, melt pool surface temperature measurements are allowing accurate specification of molten metal properties needed to accurately model melt pool thermal fluid fields, which is of critical concern in the application of advanced multi-physics melt pool modeling. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |