Optimization of Laser Direct Connection Process between TC4 and PBTCF30

Fig. 11. Interactive influence of various factors on connection strength. (a) Scanning spacing and number of sanning; (b) number of sanning and connection speed; (c) connection speed and connection power

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Table 1. Value range of process parameters
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Table 1. Value range of process parameters
Code Input parametter Uint Level
-2 -1 0 1 2
A Scanning diameter mm 0.06 0.14 0.22 0.30 0.38
B Scanning spacing mm 0.3 0.4 0.5 0.6 0.7
C Scanning times — 35 45 55 65 75
D Connection speed mm·s^-1 2 3 4 5 6
E Connection power W 45 50 55 60 65

Table 2. Experimental scheme and results

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Table 2. Experimental scheme and results

Input parameter value							Response value
Run order	Standard order	Input parameter					Joint shear strength /MPa	Pretreatment time /s
Run order	Standard order	A /mm	B /mm	C	D /（mm·s^-1）	E /W	Joint shear strength /MPa	Pretreatment time /s
1	21	0.14	0.4	65	3	60	10.20	166
2	33	0.06	0.5	55	4	55	8.69	58
3	48	0.22	0.5	55	4	55	12.50	122
4	2	0.30	0.4	45	3	50	9.22	151
5	32	0.30	0.6	65	5	60	10.02	127
6	37	0.22	0.5	35	4	55	9.85	78
7	9	0.14	0.4	45	5	50	7.25	116
8	5	0.14	0.4	65	3	50	10.25	166
9	27	0.14	0.6	45	5	60	10.55	56
10	7	0.14	0.6	65	3	50	10.55	81
11	29	0.14	0.4	65	5	60	8.25	166
12	20	0.30	0.6	45	3	60	10.55	89
13	17	0.14	0.4	45	3	60	10.22	116
14	18	0.30	0.4	45	3	60	9.20	151
15	3	0.14	0.6	45	3	50	10.50	56
16	19	0.14	0.6	45	3	60	11.50	56
17	22	0.30	0.4	65	3	60	10.75	217
18	14	0.30	0.4	65	5	50	7.55	217
19	12	0.30	0.6	45	5	50	8.58	89
20	6	0.30	0.4	65	3	50	10.35	217
21	45	0.22	0.5	55	4	55	13.02	122
22	28	0.30	0.6	45	5	60	10.56	89
23	50	0.22	0.5	55	4	55	11.85	122
24	42	0.22	0.5	55	4	65	11.35	122
25	1	0.14	0.4	45	3	50	9.56	116
26	41	0.22	0.5	55	4	45	9.35	122
27	4	0.30	0.6	45	3	50	10.52	89
28	24	0.30	0.6	65	3	60	10.85	127
29	39	0.22	0.5	55	2	55	11.35	122
30	23	0.14	0.6	65	3	60	11.00	81
31	11	0.14	0.6	45	5	50	8.00	56
32	8	0.30	0.6	65	3	50	10.56	127
33	16	0.30	0.6	65	5	50	7.85	127
34	31	0.14	0.6	65	5	60	9.55	81
35	40	0.22	0.5	55	6	55	8.20	122
36	49	0.22	0.5	55	4	55	12.00	122
37	10	0.30	0.4	45	5	50	7.30	151
38	15	0.14	0.6	65	5	50	7.55	81
39	30	0.30	0.4	65	5	60	8.85	217
40	34	0.38	0.5	55	4	55	8.55	157
41	36	0.22	0.7	55	4	55	9.85	72
42	46	0.22	0.5	55	4	55	11.53	122
43	47	0.22	0.5	55	4	55	12.80	122
44	26	0.30	0.4	45	5	60	8.52	151
45	433	0.22	0.5	55	4	55	12.30	122
46	44	0.22	0.5	55	4	55	13.20	122
47	35	0.22	0.3	55	4	55	8.30	248
48	25	0.14	0.4	45	5	60	8.55	116
49	38	0.22	0.5	75	4	55	9.85	167
50	13	0.14	0.4	65	5	50	7.15	166

Table 3. Optimization results based on criterion I
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Table 3. Optimization results based on criterion I
Type No A /mm B /mm C D /（mm·s^-1） E /W Joint shear strength /MPa Pretreatment time /s
Single 1 0.2283 0.5313 58.4051 3.2403 56.9845 12.7406 125.4769

Table 4. Optimization results based on criterion Ⅱ
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Table 4. Optimization results based on criterion Ⅱ
Type No A /mm B /mm C D /（mm·s^-1） E /W Joint shear strength /MPa Pretreatment time /s
Multi 1 0.1663 0.5919 49.3482 3.2486 58.2796 12.1542 75.9517

Table 5. Result verification of optimization criterion Ⅰ
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Table 5. Result verification of optimization criterion Ⅰ
Type A /mm B /mm C D /（mm·s^-1） E /W Joint shear strength /MPa Pretreatment time /s
Actual Predicted $σ$ Actual Predicted $σ$
Single 0.23 0.53 57 3.24 56.98 11.80 12.741 7.4 128 125.477 2.0

Table 6. Result verification of optimization criterion Ⅱ
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Table 6. Result verification of optimization criterion Ⅱ
Type A /mm B /mm C D /（mm·s^-1） E /W Joint shear strength /MPa Pretreatment time /s
Actual Predicted $σ$ Actual Predicted $σ$
Multi 0.17 0.59 49 3.25 58.28 11.50 12.154 5.0 70 75.952 7.8

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Huaizhi Liang, Chengjie Li, Tao Huang, Xiao Wang, Huixia Liu. Optimization of Laser Direct Connection Process between TC4 and PBTCF30[J]. Laser & Optoelectronics Progress, 2023, 60(21): 2114003

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