About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-51: Understanding Thermal Signatures using Infrared Monitoring of Laser Powder Bed Fusion (L-PBF) |
Author(s) |
Sujana Chandrasekar, Jamie Coble, Amy Godfrey, Serena Beauchamp, Caitlin Hensley, Travis Mcfalls, Fred List, Keith Carver, Ryan Dehoff, Vincent Paquit, Sudarsanam Suresh Babu |
On-Site Speaker (Planned) |
Sujana Chandrasekar |
Abstract Scope |
Additive Manufacturing (AM) represents a novel way of part production that has potential applications in niche fields like aerospace, nuclear and medical parts. One of the key challenges in metal AM is understanding different thermal cycles that occur in a part and consequent effects. Thermal cycling at each region of a part depends on part geometry, scan strategy, scan parameters and defects. Different thermal cycles can lead to different microstructures and change in properties. Our work demonstrates that change in thermal processing can be detected by analyzing in situ infrared videos of the build process as a time series and using similarity search algorithms. Changes corresponding to change in geometry and scan strategy have been detected. Further, different microstructures arising due to these changes have been observed and will be rationalized. The ability to scale pixelwise infrared video analysis to multiple layers will be presented. |
Proceedings Inclusion? |
Undecided |