Since a bonding method that does not weld the material, less distortion and deformation than in the case of melt welding.
Metal structure of the bonded portion by FSW as compared with the metal structure by welding such as MIG becomes fine crystal structure, the bonding strength is increased.
The welding process is simple and easy to manage.
Just by rotating and moving the joining tool mechanically
No flux wire or shield gas required
No spatter or fume generation
Power saving → 1/3 of conventional welding
Aluminum castings, which are said to be difficult to join, can be reformed.