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

<table>Influence of welding speed on the springback angle for similar grade combination (reference die angle: 59.2°); SD: shoulder diameter (in mm), RS: rotational speed (in rpm), and PD: plunge depth (in mm).</table>

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Figure 16

Figure 16: Springback of Friction Stir Welded Sheets Made of Aluminium Grades during V-Bending: An Experimental Study 