About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Symposium
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2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Presentation Title |
Laser Welding of Additively Manufactured Inconel 718 Double-Walled Cooling Channels |
| Author(s) |
Jimena Coello, Patricio Sebastian Rodriguez Beltran, Kurtis I Watanabe, Colton C Katsarelis, Paul R Gradl, Marco Opitz, Francisco Medina |
| On-Site Speaker (Planned) |
Jimena Coello |
| Abstract Scope |
Additive manufacturing (AM) enables the production of complex double-walled cooling channel geometries for aerospace applications that are difficult to fabricate using conventional methods. This research focuses on the laser welding of AM double-walled cooling channels fabricated in Inconel 718 using Laser-Powder Bed Fusion (L-PBF) for heat exchanger applications. The objective is to evaluate the feasibility of single-sided laser welding as a post-processing method to seal and join these structures while maintaining leak-free joints across both the ribs and channel walls, despite their significantly different thicknesses. Evaluation of the welded samples includes characterization of the weld region through microstructural analysis, microhardness testing, and geometric inspection to assess weld quality and joining behavior. |
| Proceedings Inclusion? |
Undecided |