|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||Online Monitoring of Powder Bed Fusion Processes and Validation of Numerically Predicted Heating and Cooling Rates - Implications on As-built Work Piece
||Mustafa Megahed, Christoph Beetz, Narcisse N'Dri, Hans-Wilfried Mindt, Mark Cola, Lars Jaquemetton, James Craig, Thomas Wakeman, Peralta Alonso, James Neumann
|On-Site Speaker (Planned)
Online monitoring systems are introduced into a commercial powder bed fusion machine. A high-speed pyrometer and a photodiode provide information about the thermal behavior of the complete powder bed and the work pieces being created. A High speed, high resolution cameras captures melt pool details including its dimensions and local temperature distribution. After introducing the captured signals and the analysis procedures, numerical models are described that capture the multi-scale multi-physics behavior of the AM process. Numerical predictions of the heating and cooling rates are validated by comparing them with results of the online monitoring systems. Further exploratory numerical investigations towards predicting material properties are performed .
||Planned: Supplemental Proceedings volume