A Model of Surface Residual Stress Distribution of Cold Rolling Spline

Table 3

Results of the depth prediction model for the residual compressive stress layer.

	Source of variance	Sum of square	Degree of freedom	Complex correlation coefficient	value
Dedendum	SSR	0.0328	5	0.9676	59.7443	3.33
	SSE	0.0011	10
	SST	0.0339	15
Pitch	SSR	0.0082	5	0.8825	15.0195	3.33
	SSE	0.0011	10
	SST	0.0093	15
Addendum	SSR	0.0088	5	0.9321	27.4451	3.33
	SSE	0.0006	10
	SST	0.0094	15