| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Multi-load Support Optimization for Minimizing Part Deformation in LPBF |
| Author(s) |
Subodh Chandra Subedi, Dan J Thoma, Krishnan Suresh |
| On-Site Speaker (Planned) |
Subodh Chandra Subedi |
| Abstract Scope |
Support structures act as primary conduits for heat flow in laser powder bed fusion (LPBF). Truss-type supports have proven to be a good choice for LPBF because of no metal powder entrapment and ease of removal. In a typical build process, these supports experience time-varying thermal and structural loads. We propose a multi-load strategy for optimizing truss-type support structures for minimizing part deformation. Equivalent static loads (ESLs) are computed using the inherent strains induced at each layer of deposition. These ESLs are applied as multi-loads to optimize the cross-section area by minimizing the compliance of the truss-type supports. The results demonstrate a reduction in part and support deformation when the optimized supports are used instead of un-optimized ones. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |