Optimization of Injection-Molding Process Parameters for Weight Control: Converting Optimization Problem to Classification Problem

Table 1

Weight under each parameter set.

No.	Process parameters		Product weight (g)	Weight error (g)
	Packing pressure (MPa)	Injection temperature (°C)
1	70	235	8.0968	−0.0632
2	80	235	8.1324	−0.0276
3	90	235	8.1040	−0.0560
4	100	235	8.0920	−0.0680
5	110	235	8.1456	−0.0144
6	120	235	8.1664	0.0064
7	70	245	8.0944	−0.0656
8	80	245	8.0896	−0.0704
9	90	245	8.1100	−0.0500
10	100	245	8.1248	−0.0352
11	110	245	8.1716	0.0116
12	120	245	8.2104	0.0504
13	70	255	8.1316	−0.0284
14	80	255	8.1624	0.0024
15	90	255	8.2028	0.0428
16	100	255	8.2404	0.0804
17	110	255	8.2836	0.1236
18	120	255	8.3288	0.1688
19	70	265	8.4116	0.2516
20	80	265	8.5212	0.3612
21	90	265	8.7520	0.5920
22	100	265	8.7608	0.6008
23	110	265	8.6756	0.5156
24	120	265	8.8624	0.7024