[Retracted] Experimental Investigation and Optimization on Friction Stir Welding of Nylon 6A Using Taguchi and ANOVA with Microstructural Analysis

Table 4

Major factors and corresponding values for the process of FSW.

Model	value
Factors	UTS	Hardness
A	0.023	0.001
B	0.076	0.004
C	0.040	0.007
A^2	0.060	0.036
B^2	0.045	0.001
C^2	0.030	0.001
AB	0.098	0.080
AC	0.021	0.004
BC	Insign	0.017
AC^2	Insign	Insign
BC^2	0.075	Insign