| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Measurement of Heat Transfer Coefficient Between a Friction Stir Welding Tool and Workpiece During Plunge Using a 3-Omega Sensor |
| Author(s) |
Matthew Goodson, Isaac Culter, Michael Miles, Troy Munro |
| On-Site Speaker (Planned) |
Troy Munro |
| Abstract Scope |
When simulating friction stir welding (FSW), there are two key factors that have yet to be experimentally measured: the friction coefficient (µ) and the heat transfer coefficient (h) between the workpiece and the tool. The current practice when simulating the FSW process is to tune µ after selecting h values based on two often cited papers; however, the authors of these papers confirm multiple times that the values they obtain are very approximate. The current research presents h measurements between the tool and the workpiece conducted during the plunge step of a friction stir weld. 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 (inverse of h) between two layers. Future work will extend the newly developed approach to measurements of h for other FSW processes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Characterization, |