Research Methods and Applications of Gear Manufacturing Process Optimization

Table 14

The Minitab response tables for SN ratios and means.

(a) Response Table for Signal to Noise Ratios (Lager is Better)

Level	Strong carburizing time (h)	Diffusion time (h)	Grinding wheel type
1	64.44	63.80	64.71
2	65. 12	65.10	65.04
3	65.30	65.96	65.11
Delta	0.86	2.17	0.39
Rank	2	1	3

(b) Response Table for Means

Level	Strong carburizing time (h)	Diffusion time (h)	Grinding wheel type
1	1683	1554	1742
2	1811	1800	1796
3	1846	1987	1803
Delta	163	434	61
Rank	2	1	3