About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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Purveyors of Processing Science and ICME: A SMD Symposium to Honor the Many Contributions of Taylan Altan, Wei Tsu Wu, Soo-Ik Oh, and Lee Semiatin
|
Presentation Title |
On the Mechanical Behavior of Keyhole-free Friction Stir Welded Copper-Aluminum Spot Joints |
Author(s) |
Isam Jabbar Ibrahim, Guney Guven Yapici |
On-Site Speaker (Planned) |
Guney Guven Yapici |
Abstract Scope |
Intermediate layer friction stir spot welding (IL-FSSW) is a recently developed solid-state joining method appropriate for making spot joints free of keyhole formation, which is a problem associated with conventional techniques. Utilizing a welding tool consisting of a non-consumable flat rotating pin, sound lap joints are fabricated including an intermediate layer. This study investigates the effect of IL-FSSW parameters on the lap shear strength of dissimilar copper-aluminum joints. Effects of processing parameters (tool rotational speed, tool descending depth, welding feed rate) on the joint strength are delineated with a comparative analysis with conventional FSSW Results are elaborated with support from microstructural and fracture surface observations concentrated at the weld region. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |