| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Beyond on the Beam IV
|
| Presentation Title |
Friction Stir Additive Manufacturing of Al-5083 |
| Author(s) |
David Garcia, Tianhao Wang, Sarvesha Rajashekara, Richard Eberheim, Arvind Agarwal, Tanaji Paul, Kenneth A Ross |
| On-Site Speaker (Planned) |
David Garcia |
| Abstract Scope |
Friction stir additive manufacturing (FSAM) is a direct progression from traditional friction stir lap welding to a hybrid additive-subtractive sheet lamination technique. Compared to traditional friction stir welding, the process-structure-property relationship in FSAM becomes obfuscated as the in-plane raster pattern and repeated thermal cycling from subsequent layer addition can lead to complex thermal gradients within the work piece. This work addresses these challenges in component-scale manufacturing by implementing robust temperature and forging force control algorithms and studying the effect of subsequent in-plane and out-of-plane material build up on the mechanical properties of Al-5083. Depending on the total heat input during processing the resultant yield strength can be varied by up to 12% and control of the tool overlap sees an increase in hardness of up to 18% from the base material. These results reflect the potential for local microstructure control through FSAM.
|
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |