|About this Abstract
||Materials Science & Technology 2019
||Joining of Advanced and Specialty Materials XXI
||Reducing Cycle Time of Refill Friction Stir Spot Welding
||Yuri Hovanski, Brigham Larsen, Arnold Wright, Michael Miles
|On-Site Speaker (Planned)
With much more complicated motion than the traditional friction stir spot welding, refill friction stir spot welding originally published cycle times of ten seconds. With more than a decade of development, and significant refinement of both tooling and machinery it is now possible to reduce weld cycle times below one second. We show the process loads required to refill friction stir spot weld in less than one second, and demonstrate how linking process kinematics to a 2-D axisymmetric finite element model enabled further refinement of the process. Welding was performed in numerous automotive aluminum alloys, demonstrating the ability to use solid-state spot joining for automotive aluminum assembly.