About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
In-situ Monitoring of Laser Powder Bed Fusion using IR and NIR Emissions to Detect Thermal Anomalies |
Author(s) |
Matthew A. Roach, Bennett Fowler, Darshan Thakkar, Charles Babbitt, Shuchi Khurana, Bradley H Jared |
On-Site Speaker (Planned) |
Matthew A. Roach |
Abstract Scope |
Process monitoring of laser-powder-bed-fusion (L-PBF) has advanced significantly since the beginning of the technology as a means for additive manufacturing. Many methods exist to date for in-situ process monitoring using the collection and analysis of certain useful emission wavelengths given off by the manufacturing process; however, these methods can be costly to implement in all situations and certain systems do not collect data at high resolution, or high enough framerate to provide meaningful data. This research aims to develop a method of low-cost thermal monitoring using near-infrared (NIR) and infrared (IR) wavelength band emission monitoring to create a system to detect anomalies. These anomalies can then be compared to printed material to verify the detection of a printed anomaly. This research will explore the use of IR along with NIR wavelengths to inform the process and other drawbacks brought about by monitoring one wavelength band over the other. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |