|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||Defect Detection in LENS AM Using In Situ Thermal Camera Process Monitoring
||Tom Stockman, Judith Schneider, Cameron Knapp, John Carpenter
|On-Site Speaker (Planned)
Metallic additive manufacturing is rapidly being integrated into production environments, but a significant hindrance to its adoption has been process control. Even within a finely tuned set of parameters, anomalous events can occur during a build and lead to defects. The study presented utilizes in situ thermal imaging to monitor the melt pool during a LENS AM process. Metrics are gathered for each frame and are summarized over every build. Plotted metrics allow a user to visually inspect the data, but the tool also automatically identifies anomalies and flags them for further review. Anomalies are then correlated to physical locations in the build which are inspected for defects. This type of process monitoring could lead to fast detection of defects during a build, thus increasing the confidence in production quality and eliminating the acceptance of specific defects which may have otherwise gone unnoticed.
||Planned: Supplemental Proceedings volume