| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Uniaxial-Load Stitch Modalities in Multi-Laser Powder Bed Fusion |
| Author(s) |
Jonathan L. Priedeman, Laura C. Dial, Tyler E. Borchers |
| On-Site Speaker (Planned) |
Jonathan L. Priedeman |
| Abstract Scope |
Laser powder bed fusion can fabricate complex metallic parts with high spatial resolution. To enable practical build times of large parts, multiple independent lasers can be used to simultaneously expose a singular part. The intersections between single-laser regions, or ‘stitch zones’, may have different bulk and/or surface characteristics, depending on factors such as thermal history or positioning errors between lasers. These stitch zone structures, then, may result in different properties. Accurate representation of stitch zone behavior depends on considering the combined effects of specimen orientation, stitch zone placement, and laser-to-laser positioning errors – giving rise to uniaxial-load stitch modalities. A concise written and visual nomenclature for conveying the ideal stitch modalities is presented, and method for describing real, uniaxial-load stitch modalities is explained. These representations provide an intuitive basis for describing uniaxial mechanical behavior of stitched components and enhance the structural optimization and processing design of the same. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Process Technology |