About this Abstract |
Meeting |
Advances in Welding and Additive Manufacturing Research 2022
|
Symposium
|
Advances in Welding and Additive Manufacturing Research 2022
|
Presentation Title |
Joining of Carbon Fiber Reinforced Composite to Lightweight Metals by Friction Self-piercing Riveting |
Author(s) |
Yong Chae Lim, Hui Huang, Yuan Li, Yiyu Wang, Zhili Feng |
On-Site Speaker (Planned) |
Yong Chae Lim |
Abstract Scope |
Multi-materials autobody concept has been envisioned for automotive industries to reduce green gas emission and improve fuel efficiency. Carbon fiber reinforced composite (CFRC), magnesium (Mg) and high strength aluminum (Al) alloys are several representative high specific strength materials with low ductility at room temperature. However, these materials have different physical and chemical properties leading to difficulties in forming sound joints. In this presentation, we will introduce our recent efforts in developing the friction self-piercing riveting process for joining of CFRC to lightweight metals. Frictional heat improves local ductility of Mg and Al alloys during joining process, leading to crack-free joints. Different process conditions were used to achieve crack-free joint as well as good mechanical interlocking between the flared rivet and bottom sheet. Mechanical performances of these dissimilar material joints were evaluated by lap shear, cross tension, and fatigue testing. Optical and electron microscopy techniques were applied to characterize joint interface. |
Proceedings Inclusion? |
Undecided |