| 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 |
Localized Shielding Gas Lens and Inert Enclosure Effects on Titanium GMAW for Wire-Arc Additive Manufacturing |
| Author(s) |
Harold A. Walters, Christopher Masuo, Andrzej Nycz, Peter Wang, Joshua Vaughan, Bill Carter, Riley Wallace, Jonathan Paul, Jason Flamm |
| On-Site Speaker (Planned) |
Harold A. Walters |
| Abstract Scope |
Depositing titanium and titanium alloys using gas-shielded metal arc welding (GMAW) presents a challenge for Wire-Arc Additive Manufacturing (WAAM) of maintaining weld quality due to the susceptibility of titanium to oxidation. GMAW utilizes an envelope of inert gas around the arc to create a small, stable environment that oxygen cannot enter to protect the weld during deposition. This standard approach falls short for shielding titanium depositions because the hot trailing bead continues to be vulnerable to oxidation during solidification. One alternative is to utilize a shielding gas device that mounts to the end effector and provides additional shielding to the trailing bead. Another alternative to this is to utilize an inert enclosure, which encompasses the entire work piece. This analysis seeks to characterize and compare the effects of utilizing a shielding gas device system to an inert enclosure for WAAM when depositing titanium beads to determine the most cost-effective process. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |