Hybrid Integration of Taguchi Parametric Design, Grey Relational Analysis, and Principal Component Analysis Optimization for Plastic Gear Production

Table 11

Grey relational grade and its order.

Trial	Grey relational grade	Order
1	0.7253	5
2	0.8046	2
3	0.5782	7
4	0.7297	4
5	0.8243	1
6	0.7910	3
7	0.5908	6
8	0.5419	8
9	0.4880	9