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

Table 2

Processing parameters and levels studied.

Column	Factors	Level 1	Level 2	Level 3
A	Melt temperature (°C)	200	220	240
B	Packing pressure (%)	60	80	100
C	Packing time (s)	5	10	15
D	Cooling time (s)	30	40	50