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

Table 12

Main effects table for grey relational grades.

Symbol	Process parameter	Level 1	Level 2	Level 3
A	Melt temperature (°C)	0.7027	0.7817	0.5403
B	Packing pressure (%)	0.6819	0.7236	0.6191
C	Packing time (s)	0.6861	0.6741	0.6644
D	Cooling time (s)	0.6792	0.7288	0.6166