About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Hybrid Directed Energy Deposition of Geometrically-Complex Pressure Vessels for Advanced HIP Canning and Digitally-Driven Powder Metallurgy |
Author(s) |
Jesus R Cruz, Mario A. Rodriguez-Parra, Alexander Gomez, Lauren Heinrich, Thomas Feldhausen, Eric MacDonald |
On-Site Speaker (Planned) |
Mario A. Rodriguez-Parra |
Abstract Scope |
Directed Energy Deposition (DED) is one of the highest production rate additive manufacturing processes; however, dimensional accuracies and surface finish are often reduced when compared to powder bed fusion. The ability to fabricate structures with internal cavities in DED is generally restricted unless the motion system enlists at least five axes, which are capable of maintaining the normal to gravity during deposition in order to create overhanging features to complete an internal cavity. A diversity of potential applications include pressure vessels and geometrically-complex hot isostatic pressing containers (HIP cans). The present work investigates the tool pathing to build a toroidal cylinder with an enclosed cavity. Leak testing and cross-sectional analysis were performed to demonstrate that the structure is sufficiently pressure tight with minimal porosity to be used as a complex HIP can - to enable the next generation of multi-material digitally-driven powder metallurgy. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |