About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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Additive Manufacturing: Equipment, Instrumentation and In-Situ Process Monitoring
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Presentation Title |
Optimization of Laser Powder Bed Fusion AM through Process Gas Control |
Author(s) |
Jacque Berkson, Antonio Ramirez |
On-Site Speaker (Planned) |
Jacque Berkson |
Abstract Scope |
Laser Powder Bed Fusion (LPBF) additive manufacturing (AM) has the distinct advantage of producing complex parts with fine feature resolution due to the high energy density power source and fine powder feedstock. This work seeks to inform opportunities LPBF users may experience by moving away from standard usage of Argon and Nitrogen as process gases. Building upon extensive literature regarding gases used in laser welding, efforts to advance the LPBF process include the manufacture and analysis of thin-wall structures, as well as implementation of modelling and fume analysis techniques. As these methodologies provide a comprehensive analysis of laser-material interactions under varying atmospheric conditions, differences in solidification behavior and part morphology are investigated. Results from this work are expected to include valuable characterization of the LPBF process for future development, as well as expand of capabilities of existing LPBF systems currently in service. |