About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Forming and Joining of Advanced Sheet Metal Materials
|
| Presentation Title |
Development of an EoL aluminum Twitch-based alloy for automotive applications |
| Author(s) |
Phil Dodge, Fanny Mas, Peter Jessner, Erin M. Deda, Dan Freiberg |
| On-Site Speaker (Planned) |
Erin M. Deda |
| Abstract Scope |
The volume of End of Life (EoL) aluminum automotive scrap is predicted to grow in the coming years as more Al-intensive vehicles reach end of life. The usage of recycled aluminum of all kinds is key for sustainability of aluminum usage in new vehicles. Current aluminum grades are not compatible with incorporation of partially sorted EoL vehicle scrap, named Twitch, as it contains a large share of castings. In response, a new alloy has been industrially prototyped targeting >80% EoL aluminum and < 2 tCO2/tAl with good strength and acceptable formability. This new Twitch-based alloy with increased Si, Cu, Fe, and Zn content was produced by Constellium as 1.1mm thick sheet, with lot release properties comparable to low Cu 6xxx alloys. The coil was used to successfully form top hat parts at Ford Dearborn Stamping Plant by a roll forming process. Complementary mechanical and microstructural characterizations are on-going. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Sustainability, Mechanical Properties |