About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Local Formability Improvement of Commercial Aluminum Sheets Using Friction Stir Processing |
Author(s) |
Wahaz Nasim, Hrishikesh Das, Mert Efe, Piyush Upadhyay |
On-Site Speaker (Planned) |
Wahaz Nasim |
Abstract Scope |
Friction Stir Processing (FSP) was implemented on 7085-T76, 7075-T6, 7055-T6 and 6111-T6 sheet metal to improve local formability where desired. FSP uses a fast-rotating tool head to impart high plastic deformation at high temperatures into the sheet metal. Rotation rate of the tool head and welding speeds were controlled to find the optimized processing parameters of each alloy. FSP sheet alloys were tested under bending to find radius to thickness ratio (r/t) at failure. FSP of 7xxx series and 6111 alloys showed formability improvement upwards of 40% and 69% respectively compared to the base alloy condition, suggesting that T4-temper level formability can be obtained locally in T6 temper sheets. A significant dependance of r/t at failure was found with the surface finish and the stress type (compression vs. tension) on the processed zone. This study also incorporated robot integration of the process to showcase integration of FSP into manufacturing lines. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Mechanical Properties, Other |