About this Abstract |
| Meeting |
TMS Specialty Congress 2026
|
| Symposium
|
World Congress on Reproducibility, Qualification, and Standards Development of Additive Manufacturing and Beyond (RQSD 2026)
|
| Presentation Title |
An Objective Means of Evaluating In-Situ Defect Detection Systems: Probability of Detection Under Practical False Alarm Constraints |
| Author(s) |
Addam Edwards, Du Huynh, Bobby Gillham, Jincheng Wang, Tim Sercombe |
| On-Site Speaker (Planned) |
Addam Edwards |
| Abstract Scope |
Confidence in laser powder bed fusion (L-PBF) has yet to reach the level required for widespread adoption in safety-critical applications, largely due to process-induced defects and variability in part quality. In-situ monitoring (ISM) of the process has undergone significant developments in recent years. A critical issue that remains is the absence of a standardised evaluation framework, limiting the ability to objectively compare different ISM systems. The established non-destructive evaluation (NDE) methodology known as Probability of Detection (POD) has been proposed to address this issue. Equally important is the systematic evaluation of false detections. Despite the maturity of these concepts, their adoption remains limited, with little practical guidance available for their application to ISM systems. Worked examples of POD and false-alarm analysis for defect detection in L-PBF are presented, providing a structured pathway for the objective evaluation and comparison of ISM systems. |
| Proceedings Inclusion? |
Undecided |