About this Abstract |
Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Presentation Title |
Challenges in Wire-Arc Additive Manufacture of Nickel Aluminum Bronze |
Author(s) |
Bradley Howell Jared, Tiffany Quigley, Joshua Penney, Devon Goodspeed, Steven Williams, Matthew Roach, William Hamel, Jakub Preis, Somayeh Pasebani |
On-Site Speaker (Planned) |
Bradley Howell Jared |
Abstract Scope |
Nickel aluminum bronze (NAB) is a complex alloy commonly selected for marine applications due to it cavitation strength and bio-fouling resistance. Historically a cast alloy, recent work has explored wire-arc additive manufacturing (WAAM) of NAB for large scale metal structures using cold metal transfer (CMT) welding. Process development started by exploring parameters informed by literature descriptions of welding and standard metal inert gas (MIG) deposition. Such MIG parameters proved inadequate as process development was performed to establish stable deposition parameters using CMT. Critical process parameters will be discussed such as interpass temperature, heat input, contact to workpiece distance and shielding gas coverage. Progress in printing complex part geometries, resulting material microstructures and tensile properties will also be presented. Finally, future research needs for WAAM of NAB will be highlighted. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |