Multiobjective Optimization of Injection Molding Process Parameters for the Precision Manufacturing of Plastic Optical Lens

Table 1

The IMPP and their levels for the Taguchi experiment.

IMPP	Level 1	Level 2	Level 3
: melt temperature (°C)	220	230
: injection velocity (mm/s)	60	70	80
: injection pressure (MPa)	80	90	100
: VP switchover (mm)	5.2	5.4	5.6
: packing time (s)	4	6	8
: packing pressure (MPa)	90	100	110
: mold temperature (°C)	60	75	90
: cooling time (s)	15	25	35