About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
|
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Optimized Dissolvable Support Design for 316L Stainless Steel Produced by Laser Powder Bed Fusion |
Author(s) |
Shawn Hinnebusch, David Anderson, Kevin Glunt, Robert Hoffman, Owen Hildreth, Albert To |
On-Site Speaker (Planned) |
Shawn Hinnebusch |
Abstract Scope |
Creating parts by laser powder bed fusion (L-PBF) process is challenging as support material is usually required for complex parts. As L-PBF can only use one material, creating a dissolvable support structure has many challenges. To have a dissolvable support, a low-density structure is usually required, but this type of structure typically has cracking and high distortion due to the presence of high residual stress. This work proposes a lattice structure design that can ensure printability while maintaining fluid flow across all the support to allow the structure to fully dissolvable. Using a hybrid lattice structure, the overall mass is minimized while still meeting the criteria for residual stress. Also, employing a self-terminating solution, the part retains the material while the support structure can be fully dissolved. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |