| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Scale-Up of Friction Self-Piercing Riveting Process for Multi-Material Joints |
| Author(s) |
Yong Chae Lim, Tianzhao Wang, Yiyu Wang, Jeremy Slade, Sammy Ojo, Zhili Feng |
| On-Site Speaker (Planned) |
Yong Chae Lim |
| Abstract Scope |
The idea of multi-material lightweight vehicles has emerged as a new approach to help decarbonize the automotive industry. However, these materials tend to have low ductility at room temperature, making them prone to cracking when using conventional mechanical joints and fastenings. To overcome this technical issue, a single class novel joining process, "friction self-piercing riveting," has been developed for joining various combinations of lightweight materials, including carbon fiber composite, 7xxx Al, casting Al, Mg alloys, and steels. The frictional heat generated during the joining process increases local ductility, which helps prevent cracking. Moreover, the combination of frictional heat and axial joining force can foster solid-state bonding between materials that are metallurgically compatible. In this talk, we will present our recent advancements in joining different material combinations from lab scale development to scale-up with multiple-joints. The resulting joints are free of cracks and demonstrate strong mechanical performances, leading to industrial towardness. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Aluminum, Composites |