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

Figure 9

Influence of rotational speed on (a) weld yield strength, (b) weld Young’s modulus, (c) yield strength to Young’s modulus ratio, and (d) weld strain hardening exponent; SD: shoulder diameter (in mm); WS: welding speed (in mm/min).

(a)

(b)

(c)

(d)