| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Presentation Title |
Characterization of Simulated Coaxial Melt Pool Monitoring Signal Variations Due to Melt Pool Morphology. |
| Author(s) |
Conor Porter, Arash Samaei, Dominik Kozjek, Jon-Erik Mogonye, Gregory Wagner, Jian Cao |
| On-Site Speaker (Planned) |
Conor Porter |
| Abstract Scope |
One barrier to wider adoption of laser powder bed fusion in industry is the ability to qualify and ensure the consistency of parts produced by this process. Coaxial photodiode monitoring sensors can provide a digital signature of a part at the melt pool scale, which can expedite qualification. However, this signature currently includes considerable noise and variation in sensor signals, masking important signatures. While the sensing method and systems contribute to the noise, fluctuations in the melt pool also contribute to variations in sensor signals, which have not been well studied. This work analyzes simulated coaxial photodiode measurements of an L-PBF simulation. These simulated sensor signals are compared to fluctuations in the simulated melt pool including variations in width and area. This work provides a preliminary basis for determining how much of the apparent noise in coaxial melt pool monitoring signals may be due to fluctuations in the melt pool.
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| Proceedings Inclusion? |
Definite: Post-meeting proceedings |