About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys: Development and Manufacturing
|
Presentation Title |
Comparative Study of RAFSW and MIG for Thick Butt-Welding of AA6061-T6 Extrusions |
Author(s) |
Seyed Zia Daghighi Sorkohi, Michel Guillot |
On-Site Speaker (Planned) |
Seyed Zia Daghighi Sorkohi |
Abstract Scope |
Aluminum alloys have become popular due to their ease of extrusion, good weldability and excellent strength-to-weight ratio. In this comparative study, two techniques are applied to butt weld 25.4 mm thick extrusions: right angle friction stir welding (RAFSW) and metal inert gas (MIG) welding. The proposed joints are welded from both sides which allows optimal welding conditions while minimizing costs.
More specifically, the optimized RAFSW technique reduces the plunging force and maximizes the ultimate tensile strength, avoiding defects like keyholes and lack of penetration. MIG welding of 25.4 mm thick is also realized from both sides to produce joints with almost no distortions and high strength levels. Another advantage of MIG welding from both sides is to reduce significantly the number of passes.
The comparison between RAFSW and MIG for thick joints is done based on different considerations including mechanical, metallurgical and economical performances. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Joining, Mechanical Properties |