About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
|
Presentation Title |
Machine Learning Guided Friction Stir Welding of AA7075-T6 Aluminum Alloy |
Author(s) |
Yizhou Lu, Shubhrodev Bhowmik, Nilesh Kumar, Samrat Choudhury |
On-Site Speaker (Planned) |
Yizhou Lu |
Abstract Scope |
Friction stir welding (FSW) has revolutionized the welding of aluminum alloys. However, the joining of precipitation-strengthened aluminum alloys has remained challenging due to the drop in strength or hardness in the heat-affected zone (HAZ). The hardness in the HAZ is influenced by parameters, such as tool rotational rate, tool traverse speed, and tool shoulder diameter, to name a few. In this work, using machine learning tools, we have identified the key processing parameters that govern the hardness at the welded region. Later, we applied an adaptive design strategy to iteratively identify a combination of processing parameters needed to obtain a targeted hardness at the HAZ. The aim is to maximize the improvement in targeted hardness during each subsequent experiment until the desired hardness is reached. The novelty of this approach is that only a subset of data needs to be generated experimentally to achieve the targeted hardness at the HAZ. |
Proceedings Inclusion? |
Planned: |
Keywords |
Joining, Aluminum, Machine Learning |