|About this Abstract
||Materials Science & Technology 2019
||Joining of Advanced and Specialty Materials XXI
||Joining of Carbon Fiber Reinforced Composites to AZ31B using Friction Self-piercing Riveting
||Yong Chae Lim, Charles David Warren, Jian Chen, Jiheon Jun, Zhili Feng
|On-Site Speaker (Planned)
||Yong Chae Lim
Multi-materials autobody concept using high specific strength materials has been focused for automotive industries to improve fuel efficiency while maintaining safety and performance requirements. However, joining of such dissimilar materials poses a technical barrier to enable and widespread of lightweight vehicle structures. In the present work, friction self-piercing riveting (F-SPR) that is a unique solid-state joining process was applied for joining of carbon fiber composites to AZ31B. One particular issue of magnesium alloy is a low ductility at room temperature. This cracking issue can be avoided by the localized frictional heat generated between the rotating rivet and underneath sheet. Joint integrity was evaluated by lap shear tensile and cross tension testing. The joint interface from the cross-sectioned F-SPR specimen was evaluated by optical and electron microscopy techniques. Salt spray testing according to ASTM B117 specification was used to access an initial corrosion performance of F-SPR specimens.