About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Aluminum Alloys, Characterization and Processing
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Presentation Title |
Mapping the Laser Additive Manufacturing Process of Aluminium Alloys Through In-situ Synchrotron Radiography |
Author(s) |
Rubén Lambert-Garcia, Samy Hocine, Sebastian Marussi, Andy Farndell, Elena Ruckh, Maureen Fitzpatrick, Anna Getley, Martha Majkut, Alexander Rack, Nick Jones, Peter D. Lee, Chu Lun Alex Leung |
On-Site Speaker (Planned) |
Rubén Lambert-Garcia |
Abstract Scope |
Laser powder bed fusion (LPBF) is an additive manufacturing technology capable of processing aluminium alloy powder feedstock into geometrically complex structures. Aluminium casting alloys such as AlSi10Mg are gaining popularity in additive manufacturing applications such as high-performance heat exchangers, taking advantage of the design flexibility afforded by LPBF. However, the processing window for aluminium alloys is narrow and the formation of defects (such as porosity, lack of fusion between layers, and droplet spatter) is common. Here we apply in situ and operando synchrotron X-ray imaging to see inside the melt pool during laser processing and observe the formation of such defects to better understand the conditions under which they occur. We mapped these imaging results into distinct melting regimes as a function of processing parameters which could be used to guide optimum industrial settings to produce high-quality parts. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Additive Manufacturing, Powder Materials, Aluminum |