About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Presentation Title |
Functionally Inspired Part-Structure-Process Qualification Artifact for Laser Powder Bed Fusion AM With Feature-Specific Metrology, Standardization, and In-Situ Monitoring |
Author(s) |
Utkarsh Thakre, Suman Das, Venkatavardhan Sunderarajan, Lonnie Webb |
On-Site Speaker (Planned) |
Utkarsh Thakre |
Abstract Scope |
A functionally inspired qualification artifact is introduced for laser Powder Bed Fusion (LPBF) that bridges the gap between standardized qualification and industrial application demands. The artifact integrates complex geometries mirroring aerospace and automotive components, while addressing critical limitations in existing standards. A multi-scale metrology framework/standard combines X-CT (≤10 µm voxel resolution), coordinate measuring machines (CMM), and optical profilometry to quantify dimensional accuracy, subsurface defects, and surface roughness. For the first time, in-situ monitoring (infrared thermography, CMOS sensors) is embedded into artifact validation, linking process anomalies to final part quality. The design accounts for multi-orientation builds (0°,45°,90°) to systematically evaluate anisotropic errors, revealing Z-axis shrinkage variations (~2.3%) in Ti6Al4V. Validated across multiple build 3D-Systems DMP320, the artifact enables cross-machine benchmarking via ISO/ASTM 52902-aligned metrics. This work advances LPBF standardization by unifying process-structure-property relationships into a single qualification platform, directly addressing industry needs for reliable AM adoption. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |