Springback of Friction Stir Welded Sheets Made of Aluminium Grades during V-Bending: An Experimental Study

Figure 2

V-bending setup during testing of sheet samples: (a) fully bent sample; (b) sample after retracting punch (removal of load); (c) fabricated punch. Reference die angle: 𝜃_𝑑; springback angle near die radius: 𝜃_𝑠1; springback angle far from die radius: 𝜃_𝑠2.

(a)

(b)

(c)