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 |
Characterization of Processing Defects in an AFSD Deposited 5xxx Aluminum Alloy |
| Author(s) |
Mason Frederick Smith, Bradley Jared, Dayakar Penumadu, Sirirut Akawut, Zach Arwood |
| On-Site Speaker (Planned) |
Mason Frederick Smith |
| Abstract Scope |
Additive Friction Stir Deposition (AFSD), a new solid-state AM technology based on friction stir welding, stands apart from established methods via unprecedented build rates and print volumes. However, there is a notable gap in the literature on AFSD defect detection and characterization. In this work, the causes and effects of various heterogeneities are explored through an unrepresented alloy system: 5xxx aluminum. Due to its corrosion resistance and AFSD’s potential in fabricating large components for marine applications, the intersection of material and process is prudent. Three distinct feedstock forms were deposited by AFSD, and subsequently interrogated using non-destructive evaluation (NDE), various microscopy techniques, and targeted sample extraction. Both before and after heat treatment, ultrasonic testing highlights potential tunnel defects and kissing bonds within all printed material. Sectioning was then performed to isolate and quantify the nature of these features, as well as their effects on mechanical properties. |
| Proceedings Inclusion? |
Undecided |