Effects of Varied Oxygen Levels on Manufactured Components by Laser-Powder Bed Fusion
Location
Allen E. Paulson College of Engineering and Computing (CEC)
Session Format
Poster Presentation
Co-Presenters and Faculty Mentors or Advisors
Dr. Drew Snelling, Faculty Advisor
Abstract
The purpose of this research is to study the impact of controllable machine input parameters on the melt pool morphology of L-PBF additively manufactured components. Additive manufacturing holds great promise for manufacturing and it is important to understand process property characteristics to predict and produced robust end-use parts. By characterizing the behavior of the melt pool as related to the input parameters, the quality can be better controlled. A series of components are manufactured using L-PBF and run at atmospheric gaseous conditions, with high and low input factors for laser power and scanning speed on low carbon and stainless steels substrates. Based on the resultant data, a relationship between melt pool geometry and laser power and scanning speed is then determined. It is expected that low speed and high power combination will yield the best depth to width (d/w) ratios of the meltpool geometry. Based on a limited run Design of Experiments (DOE), the authors will determine how the combination of laser power, laser speed, and oxygen percentage will affect the overall d/w ratio of the laser meltpool.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Presentation Type and Release Option
Presentation (Open Access)
Recommended Citation
McNamee, Amelia, "Effects of Varied Oxygen Levels on Manufactured Components by Laser-Powder Bed Fusion" (2021). GS4 Georgia Southern Student Scholars Symposium. 100.
https://digitalcommons.georgiasouthern.edu/research_symposium/2021/2021/100
Effects of Varied Oxygen Levels on Manufactured Components by Laser-Powder Bed Fusion
Allen E. Paulson College of Engineering and Computing (CEC)
The purpose of this research is to study the impact of controllable machine input parameters on the melt pool morphology of L-PBF additively manufactured components. Additive manufacturing holds great promise for manufacturing and it is important to understand process property characteristics to predict and produced robust end-use parts. By characterizing the behavior of the melt pool as related to the input parameters, the quality can be better controlled. A series of components are manufactured using L-PBF and run at atmospheric gaseous conditions, with high and low input factors for laser power and scanning speed on low carbon and stainless steels substrates. Based on the resultant data, a relationship between melt pool geometry and laser power and scanning speed is then determined. It is expected that low speed and high power combination will yield the best depth to width (d/w) ratios of the meltpool geometry. Based on a limited run Design of Experiments (DOE), the authors will determine how the combination of laser power, laser speed, and oxygen percentage will affect the overall d/w ratio of the laser meltpool.
