From: Effect of cone angle of cylindrical pin in the SFSW and DFSW on mechanical properties of AA6061-T6 alloy
Model’s name
Process
Tapered angle (°)
A0
FSW
0
A5
5
A10
10
A15
15
A20
20
B0
Symmetrical DFSW
B5
B10
B15
B20
C0
Asymmetrical DFSW
C5
C10
C15
C20