Factor

Process Parameter

Shear Strength (MPa)

S/N

ratio

Rotational

Speed (rpm)

Welding Speed

(mm/min)

Axial Load

(kN)

1

800

30

9.5

42.43

32.55

2

800

45

11.0

58.64

35.36

3

800

60

12.5

47.97

33.61

4

1000

30

11.0

36.42

31.22

5

1000

45

12.5

48.87

33.78

6

1000

60

9.5

38.32

31.66

7

1200

30

12.5

52.36

34.38

8

1200

45

9.5

55.42

34.87

9

1200

60

11.0

53.34

34.54