| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
The Effect of Cryogenic Cooling on the Microstructure and Mechanical Properties of Wire Arc Additively Manufactured Steels |
| Author(s) |
Constantinos Goulas, Maximus Akuh, Vignesh Venkata Subramanian, Remco Rook, José Galán Argumedo, Theodoros Michelis, Marco Ameye, Wei Ya, Ian Gibson, Marcel Hermans |
| On-Site Speaker (Planned) |
Constantinos Goulas |
| Abstract Scope |
A dominating factor largely limiting the deposition rates in Wire + Arc Additive Manufacturing (WAAM) is the waiting time related to temperature management. During WAAM deposition of large constructs, the welding of each bead is commonly followed by significant cooling time. Supplementing the WAAM process with cryogenic cooling address these limitations and enables a steep increase in production rates. A cryogenic cooling solution and a temperature and process monitoring system were integrated into a multi-robot WAAM setup, reducing cooling times up to 70%. Single and multi-bead walls were deposited at high deposition rates (5Kg/hr) using this cryogenic cooling system. The materials studied in this work include deposits of structural steel, austenitic stainless steel and martensitic stainless steel. The microstructural and texture evolution of cryogenically cooled WAAM samples is discussed and compared with non-cooled samples, oftentimes leading to a positive effect on the mechanical properties of the WAAM products. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |