| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
The Simultaneous Double-Sided Friction Stir Welding (SDS-FSW) of Steel |
| Author(s) |
Branislav Dzepina, Santonu Ghosh, Richard Townsend, Matthew Hackett, Stephen Cater, Muneo Matsushita |
| On-Site Speaker (Planned) |
Branislav Dzepina |
| Abstract Scope |
The single-pass friction stir welding of thick steel (>12 mm) presents significant challenges. Due to the low thermal conductivity of steel and the large thermal gradient between the shoulder and the tip of the stirring probe, increasing forces and temperatures are necessary to generate sufficient heat to transport the softened material to the root of the weld and these, in turn, reduce tool life. Very long stirring pins also become more susceptible to fracture due to the larger bending moments during traverse motion. Simultaneous double-sided friction stir welding (SDS-FSW), where two smaller tools are used simultaneously to produce a full through thickness weld, presents many advantages: it can extend tool lifetime; it reduces distortion in the plates due to the even application of axial force; it can increase welding throughput and also eliminates root defects. In this study we present data and weld characterisations for SDS-FSW performed on steel. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Iron and Steel, High-Temperature Materials |