| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XI
|
| Presentation Title |
Oscillation Behavior of Dissimilar Aluminum/Steel Joints Realized by Ultrasound Enhanced Friction Stir Welding (USE-FSW) |
| Author(s) |
Marco Thomä, Andreas Gester, Guntram Wagner |
| On-Site Speaker (Planned) |
Marco Thomä |
| Abstract Scope |
Ultrasound enhanced friction stir welding, where power ultrasound is transmitted in one of the metal sheets, was verified to be beneficial compared to conventional friction stir welding. The most mentionable verified influences are the reduction of welding forces, the improvement of the stirring of the nugget and the breakup of oxide layers for dissimilar joints. The additional power ultrasound results in a stronger mechanical stimulation of the stirring zone. Regarding this USE-FSW process the oscillation behaviour of the metal sheets is an important effect which has not been investigated in detail so far. The current work is under progress and is investigating the oscillation behaviour from a qualitative and quantitative point of view on the metal sheets during USE-FSW on dissimilar aluminium/steel joints using different laser vibrometers. Special attention is also given to the resulting microstructure and mechanical properties of the joints to investigate possible correlations with the oscillation behavior. |
| Proceedings Inclusion? |
Planned: |