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 |
Development of an Eddy Current In-situ Diagnostic for Directed Energy Deposition |
| Author(s) |
Michael Juhasz, Saptarshi Mukherjee, Lei Peng, Sapana Shirsat, Yiming Deng, Joseph Tringe, Ethan Rosenberg |
| On-Site Speaker (Planned) |
Michael Juhasz |
| Abstract Scope |
Eddy current sensing offers a potential path for direct, real-time observation of melt pool behavior during directed energy deposition (DED). While prior additive manufacturing applications have focused mainly on layer-wise defect detection, this work explores the feasibility of adapting eddy current sensing for real-time, in-situ use in the challenging DED environment. The long-term goal is to support both defect detection and improved understanding of subsurface process dynamics. This presentation summarizes early validation efforts aimed at identifying technical barriers and establishing a foundation for real-time implementation. We describe the development of progressively more representative test cases to assess sensor performance, signal response, and integration considerations under controlled conditions relevant to DED. Initial results indicate that eddy current sensing may be a viable approach for monitoring subsurface phenomena during processing, while also revealing practical challenges for industrial deployment. Prepared by LLNL under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Undecided |