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

Table 1

Tensile properties of AA 6061T6.

Rolling direction	𝜎ys (MPa)	UTS (MPa)	𝜀𝑢 (%)	𝜀𝑡 (%)	𝑛	𝐾 (MPa)	𝑅
0^0	269±8	312±11	10.5±1	12.6±2	0.08	379±21	0.81
15^0	266±9	310±10	9.7±2	12.6±1	0.07	373±23	0.75
30^0	260±5	308±9	10.9±2	12.6±2	0.07	375±26	0.8
45^0	259±11	308±8	11.7±1	13.3±1	0.08	378±21	0.9
60^0	273±7	318±7	11.2±2	13.3±1	0.07	387±18	0.84
75^0	263±6	311±8	11.9±1	13.0±1	0.08	379±19	0.84
90^0	262±4	309±8	9.6±2	11.7±1	0.08	381±15	0.71