| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XI
|
| Presentation Title |
Friction Stir Welding of Metal Matrix Composites to Dissimilar Aluminum Alloys: Optimization of Weld Quality and Tool Life
|
| Author(s) |
Michael Eff, Scott Rose, Kyung Chung, Don Hashiguchi, Drew Shipley, Elizabeth Burns |
| On-Site Speaker (Planned) |
Michael Eff |
| Abstract Scope |
The emergence of metal matrix composites (MMC) offer many advantages for the aerospace industry including high specific stiffness and strength. Joining of MMCs can be very challenging due to their composition. Friction Stir Welding (FSW) can join MMCs, but often experiences severe wear of the tool due to the SiC particles limiting its commercial viability. This work will summarize a development effort to design long life FSW tools and optimize the welding parameters via design of experiment (DOE) techniques in several MMCs for use as stiffener for aerospace panels. Weld quality and the effects of FSW on the MMC/Al joints were examined using lap shear tensile testing, mini-tensile testing, metallographic examination, and scanning electron microscopy. Tool life was examined using repeated bead of plates welding trials in two different MMCs. The study resulted in optimized tool materials and welding parameters for the MMC/Aluminum lap welds. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Mechanical Properties, Joining |