Heat Index Based Optimisation of Primary Process Parameters in Friction Stir Welding on Light Weight Materials

Table 4

Experimental results on mechanical property (yield strength in MPa).

Shoulder radius	Tool rotational speed (rpm)	Weld speed
		60 mm/min	70 mm/min	80 mm/min
7.5	800	311.2	286.7	278.9
	900	303.2	300.8	287.3
	1000	300.1	308.3	296.7
	1100	297.3	305.6	297.1
	1200	294.9	301.9	308.3
9	800	308.8	287.4	284.7
	900	305.1	311.4	295.5
	1000	299.5	307.2	299.2
	1100	299.3	303.5	312.8
	1200	296.3	302.1	312.1
10.5	800	307.1	313.1	294.6
	900	300.9	311.9	313.1
	1000	295.5	305.9	312.4
	1100	293.3	301.3	308.1
	1200	292.9	300.1	304.1
12	800	300.1	310.1	298.5
	900	298.3	307.2	312.4
	1000	296.5	302.9	308.3
	1100	294.4	301.1	304.5
	1200	293.9	299.3	303.6