| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Measurement of Heat Transfer Coefficient between a Friction Stir Welding Tool and Workpiece during Plunge Using a 3ω Sensor |
| Author(s) |
Matthew E. Goodson, Ryan Melander, Troy Munro, Michael Miles |
| On-Site Speaker (Planned) |
Ryan Melander |
| Abstract Scope |
When simulating friction stir welding (FSW) to understand weld quality, there are two key factors that have yet to be experimentally measured: the friction coefficient (µ) and the heat transfer coefficient (h) [W/m2K] between the workpiece and the rapidly rotating tool. The current practice when simulating the FSW process is to tune µ after selecting approximate h values based on two often cited papers. The current research presents h measurements conducted during the plunge step of a friction stir weld, including the h value for the tool/workpiece interface. Validation and integration of a 3ω measurement system will be presented. The 3ω measurement systems works by introducing a periodic temperature variation that leads to the measurement of the thermal contact resistance between two layers. Thermal contact resistance is the inverse of h. Future work will extend the newly developed approach to measurements of h for other FSW processes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Modeling and Simulation, |