| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Robust Temperature Control for Shear Assisted Processing and Extrusion (ShAPE) |
| Author(s) |
Woongjo Choi, Xiao Li, Kenneth A Ross |
| On-Site Speaker (Planned) |
Woongjo Choi |
| Abstract Scope |
This work presents robust temperature controlled copper wire extrusion via Shear Assisted Processing and Extrusion (ShAPETM). In the ShAPE process, a rotating tool generates heat at the tool/billet interface. In this demonstrated temperature control algorithm, the amount of heat generated through the spindle axis is controlled by the modulating mechanical input power, which is the product of torque and speed of the spindle motor. The torque modulation of the spindle motor in response to spindle speed feedback is used to control spindle power. Temperature measured at the tool workpiece interface is controlled using a novel proportional–integral–derivative (PID) closed loop structure that sets the spindle power setpoint. Empirical system identification via frequency analysis was conducted to model the system and understand how model parameter varies with various conditions. The results show that the developed algorithm successfully achieve both process stability and disturbance rejection in ShAPE. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Modeling and Simulation, Process Technology |