Optimization of the Physical and Mechanical Properties of a Spline Surface Fabricated by High-Speed Cold Roll Beating Based on Taguchi Theory

Table 9

Optimization results.

	Evaluation index	Fitted mean	Fitting residual error	Total
Traditional Taguchi method	Work-hardening degree	145.12	21.48
	Residual stress	79.72	34.328	1.802
Present method	Work-hardening degree	147.2	22.9048
	Residual stress	81.32	36.688	3.6241