A Model of Surface Residual Stress Distribution of Cold Rolling Spline

Table 2

Test results from the prediction model for the peak residual stress.

	Source of variance	Sum of square	Degree of freedom	Complex correlation coefficient	value
Dedendum	SSR	1193.2	5	0.997	636.24	3.33
	SSE	3.7507	10
	SSE	1197.0	15
Pitch	SSR	454.5369	5	0.9883	168.52	3.33
	SSE	5.4006	10
	SST	459.93	15
Addendum	SSR	234.5072	5	0.9864	144.63	3.33
	SSE	3.2428	10
	SST	237.8	15