Study of Residual Wall Thickness and Multiobjective Optimization for Process Parameters of Water-Assisted Injection Molding

Table 2

The actual value, predicted value, RE, and RP of hollowed core ratio of the three models.

Sample	1	2	3	4	5	6	7	8	9	10	Mean
Actual value (%)	53.8	54.0	54.6	54.3	55.7	54.0	51.9	54.6	53.1	54.0	54.0
RSM predicted value (%)	54.2	54.7	55.3	55.1	56.7	54.2	52.8	55.1	54.8	54.9	54.9
RBF predicted value (%)	54.5	54.6	54.7	53.9	56.5	53.8	52.9	53.9	54.7	54.4	54.4
Kriging predicted value (%)	55.1	56.0	56.1	55.6	57.7	55.2	51.2	55.6	55.6	55.6	55.4
RSM
RE (%)	0.7	1.3	1.3	1.5	1.8	0.4	1.7	0.9	3.2	1.7	1.5
RP (%)	99.3	98.7	98.7	98.5	98.2	99.6	98.3	99.1	96.8	98.3	98.5
RBF
RE (%)	1.3	1.1	0.2	0.7	1.4	0.4	1.9	1.3	3.0	0.7	1.2
RP (%)	98.7	98.9	99.8	99.3	98.6	99.6	98.1	98.7	97.0	99.3	98.8
Kriging
RE (%)	2.4	3.7	2.7	2.4	3.6	2.2	1.3	1.8	4.7	3.0	2.8
RP (%)	97.6	96.3	97.3	97.6	96.4	97.8	98.7	98.2	95.3	97.0	97.2