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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Process Sensitivity Assessment of a Build-Integrated Witness Artifact for Laser Powder Bed Fusion
Author(s) Sina Nejati Eghteda, Albert C. To
On-Site Speaker (Planned) Sina Nejati Eghteda
Abstract Scope Process variability in laser powder bed fusion (LPBF) can introduce defect populations that degrade mechanical performance, yet current qualification methods rely on costly post-build testing. This work investigates the sensitivity of a compact, build-integrated witness artifact to process-induced material variations in LPBF. The artifact is fabricated concurrently with the build and yields a mechanical response that reflects the material condition produced during manufacturing. Builds are conducted under systematically varied LPBF parameters spanning conditions expected to produce distinct defect characteristics. Response metrics extracted from the artifacts are analyzed across the investigated process window and compared with conventional fracture specimens to evaluate consistency with established fracture resistance measures. Results indicate that the artifact can distinguish between process conditions associated with different levels of material integrity, supporting its potential as a rapid screening tool for LPBF build quality.
Proceedings Inclusion? Undecided

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