Experimental-Based Optimization of Injection Molding Process Parameters for Short Product Cycle Time

Table 3

Experimental results for warpage, volumetric shrinkage, and cycle time.

	Injection speed	Injection pressure	Measured injection pressure	Cooling time	Packing pressure	Mold temp.	Packing time	Melt temp.	Warpage	Volumetric shrinkage	Cycle time
	mm/s	bar	bar	sec	bar	°C	sec	°C	mm	cm^3	sec
	1	15	450	457	10	100	15	9	200	5.8	3.97	31.1
2	15	450	457	30	100	15	3	200	6.8	5.17	43.9
3	15	450	457	10	400	15	3	200	6	4.59	24.7
4	15	450	457	30	400	15	9	200	2.9	2.45	49.8
5	15	800	462	10	100	15	3	200	4.5	5.26	24.5
6	15	800	461	30	100	15	9	200	3.4	3.95	49.8
7	15	800	460	10	400	15	9	200	3.9	2.55	31.4
8	15	800	461	30	400	15	3	200	6	4.49	43.8
9	60	450	452	10	100	15	3	200	4.4	5.38	23.6
10	60	450	452	30	100	15	9	200	3.7	4	48.9
11	60	450	452	10	400	15	9	200	3.5	2.63	30.3
12	60	450	452	30	400	15	3	200	7.7	4.62	42.7
13	60	800	785	10	100	15	9	200	5.8	4.34	29.0
14	60	800	783	30	100	15	3	200	9.1	5.21	41.9
15	60	800	791	10	400	15	3	200	7	4.1	22.9
16	60	800	787	30	400	15	9	200	2.9	1.97	47.9
17	15	450	447	10	100	45	3	200	4.7	5.33	25.6
18	15	450	445	30	100	45	9	200	9	4.05	49.9
19	15	450	450	10	400	45	9	200	5.1	3.24	31.2
20	15	450	447	30	400	45	3	200	6.8	5.09	43.8
21	15	800	445	10	100	45	9	200	4	4.1	30.9
22	15	800	446	30	100	45	3	200	7.9	5.55	48.8
23	15	800	444	10	400	45	3	200	9.6	5.17	24.8
24	15	800	446	30	400	45	9	200	4	3.15	49.8
25	60	450	453	10	100	45	9	200	4.5	4.19	29.8
26	60	450	452	30	100	45	3	200	7.2	5.68	42.7
27	60	450	453	10	400	45	3	200	8.6	5.31	23.3
28	60	450	453	30	400	45	9	200	4.5	3.25	48.7
29	60	800	783	10	100	45	3	200	11	5.53	22.4
30	60	800	779	30	100	45	9	200	3.8	4.14	47.9
31	60	800	781	10	400	45	9	200	6	2.28	29.4
32	60	800	780	30	400	45	3	200	7.9	4.27	41.9
33	15	450	343	10	100	15	3	250	8.4	5.92	24.4
34	15	450	342	30	100	15	9	250	5.2	3.85	49.7
35	15	450	343	10	400	15	9	250	4.5	3.12	31.4
36	15	450	344	30	400	15	3	250	8	5.35	43.7
37	15	800	345	10	100	15	9	250	5	3.95	31.2
38	15	800	345	30	100	15	3	250	7.6	5.85	43.7
39	15	800	348	10	400	15	3	250	6.7	5.48	24.6
40	15	800	349	30	400	15	9	250	6.4	3.02	49.7
41	60	450	451	10	100	15	9	250	4.8	4.15	29.5
42	60	450	451	30	100	15	3	250	6	6.06	42.1
43	60	450	452	10	400	15	3	250	7.7	5.83	22.9
44	60	450	452	30	400	15	9	250	5.2	3.2	48.1
45	60	800	639	10	100	15	3	250	16	6.16	22.6
46	60	800	639	30	100	15	9	250	7.1	4.07	47.8
47	60	800	639	10	400	15	9	250	6	3.29	29.5
48	60	800	642	30	400	15	3	250	9.1	5.48	41.9
49	15	450	333	10	100	45	9	250	5.8	4.54	30.8
50	15	450	334	30	100	45	3	250	7.9	6.21	43.8
51	15	450	335	10	400	45	3	250	9.9	5.95	24.3
52	15	450	338	30	400	45	9	250	8.4	3.84	49.8
53	15	800	336	10	100	45	3	250	13.6	6.25	24.3
54	15	800	338	30	100	45	9	250	8.8	4.43	49.7
55	15	800	338	10	400	45	9	250	7	3.94	31.0
56	15	800	337	30	400	45	3	250	8.6	5.87	43.9
57	60	450	451	10	100	45	3	250	8.1	6.49	22.6
58	60	450	452	30	100	45	9	250	7.6	4.63	48.2
59	60	450	452	10	400	45	9	250	9.3	4.13	29.4
60	60	450	452	30	400	45	3	250	8.3	6.11	42.2
61	37.5	625	625	20	250	30	6	200	6.2	4.2	35.4
62	37.5	625	511	20	250	30	6	250	8	4.84	35.3
63	37.5	625	625	20	250	15	6	225	9	4.26	35.3
64	37.5	625	625	20	250	45	6	225	3.6	4.87	35.4
65	15	625	395	20	250	30	6	225	7.3	4.31	35.9
66	60	625	628	20	250	30	6	225	7.6	4.51	35.0
67	37.5	450	452	20	250	30	6	225	6.5	4.44	35.6
68	37.5	800	580	20	250	30	6	225	7.6	4.45	35.3
69	37.5	625	625	20	100	30	6	225	4.8	4.97	35.4
70	37.5	625	625	20	400	30	6	225	7.5	4.27	35.4
71	37.5	625	625	10	250	30	6	225	6.3	4.61	26.1
72	37.5	625	625	30	250	30	6	225	5.7	4.5	45.4
73	37.5	625	625	20	250	30	3	225	7.4	5.61	32.4
74	37.5	625	625	20	250	30	9	225	5.6	3.63	38.3
75	37.5	625	625	20	250	30	6	225	7.2	4.54	35.3
76	60	800	800	10	100	45	9	250	7.65	4.31	28.2
77	60	800	800	30	100	45	3	250	8.01	5.66	42.2
78	60	800	800	10	400	45	3	250	11.2	4.53	21.9
79	60	800	800	30	400	45	9	250	4.88	2.51	47.4