About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Friction Stir Welding and Processing XI
|
Presentation Title |
Characterization of Intermetallics Formation in µFSSW of Dissimilar Al/Cu Alloy Sheets |
Author(s) |
David P. Yan, Logan Vahlstrom |
On-Site Speaker (Planned) |
David P. Yan |
Abstract Scope |
Electric vehicle battery packs consist of a large number of battery cells which must be assembled together with robust mechanical and electrical joints. One of the challenges is to join highly conductive and dissimilar multilayer materials such as Al to Cu alloy sheets with 100% reliability. Micro friction stir spot welding (µFSSW) is a spot-like joining process utilizing a non-consumable tool to generate frictional heat and join multilayer materials under the solid-state condition. Which makes the µFSSW a strong candidate for joining dissimilar Al/Cu sheets to manufacture various types of battery interconnects. But investigations to the dissimilar µFSSW of thin (<0.02") Al to Cu alloy sheets are limited. In this paper, experimental studies are performed on µFSSW of 0.016" thick Al 6061 (T6) to Cu (Astm B370) sheets. The effect of µFSSW conditions on the weld zone intermetallics formation is studied in relation to the processing force, torque and temperature. |
Proceedings Inclusion? |
Planned: |