[Retracted] Effect of Tool Profile Influence in Dissimilar Friction Stir Welding of Aluminium Alloys (AA5083 and AA7068)

Table 6

Summary of different tool profiles with microhardness.

S. no.	Tool profile	Rotational speed (rpm)	Microhardness (HV)
			30 mm/min- 3 kN	40 mm/min- 4 kN	50 mm/min- 5 kN	60 mm/min- 6 kN
1.	Cylindrical taper tool	800	45	50	48	46
2.		1000	62	66	68	58
3.		1200	75	70	72	66
4.		1400	56	52	42	50
5.	Triangular tool	800	55	48	55	52
6.		1000	68	60	75	66
7.		1200	86	75	68	78
8.		1400	62	65	54	54
9.	Straight cylindrical tool	800	46	50	52	48
10.		1000	64	66	68	60
11.		1200	82	80	74	72
12.		1400	58	48	52	50