Removal of Cable Shield Material by YAG Laser

Fig. 2. Cloud pictures of temperature field in shielding layer. (a) Temperature field in quasi-steady state; (b) longitudinal distribution of temperature field

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Fig. 3. Influence of laser power on peeling quality of shielding layer

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Fig. 4. Influence of laser scanning speed on peeling quality of shielding layer

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Fig. 5. Influence of laser frequency on peeling quality of shielding layer

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Fig. 6. Influence of defocusing distance on peeling quality of shielding layer

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Fig. 7. (a) Effect picture and (b) kerf surface of laser peeling of shielding layers after laser parameter optimization

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Table 1. Process parameters and test results for laser peeling of shielding layers

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Table 1. Process parameters and test results for laser peeling of shielding layers

Serial number	Power /W	Scanning speed /(mm·s^-1)	Frequency /kHz	Defocusing distance /mm	Kerf width /(10^-2 mm)	Kerf depth /mm
1	12	5	30	0	0.207	0.019
2	14	5	30	0	0.361	0.079
3	16	5	30	0	0.482	0.120
4	18	5	30	0	0.516	0.120
5	20	5	30	0	0.826	0.120
6	16	1	30	0	0.861	0.120
7	16	3	30	0	0.723	0.120
8	16	7	30	0	0.431	0.090
9	16	9	30	0	0.258	0.062
10	16	5	10	0	0.327	0.099
11	16	5	20	0	0.448	0.120
12	16	5	40	0	0.561	0.120
13	16	5	50	0	0.534	0.109
14	16	5	30	-2	0.172	0.040
15	16	5	30	-1	0.334	0.087
16	16	5	30	1	0.429	0.051
17	16	5	30	2	0.086	0.006

Table 2. Factor level table
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Table 2. Factor level table
Level Factor
A /W B /(mm·s^-1) C /kHz D /mm
1 15 4 20 -0.5
2 17 5 30 0
3 19 6 40 0.5

Table 3. Arrangement of orthogonal test elements and results

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Table 3. Arrangement of orthogonal test elements and results

Serial number	Element				Result
Serial number	A /W	B /(mm·s^-1)	C /kHz	D /mm	Kerf width /(10^-2 mm)	Kerf depth /mm
1	15	4	20	-0.5	0.686	0.096
2	15	5	30	0	0.549	0.120
3	15	6	40	0.5	0.481	0.104
4	17	4	30	0.5	0.658	0.112
5	17	5	40	-0.5	0.562	0.120
6	17	6	20	0	0.439	0.120
7	19	4	40	0	0.713	0.120
8	19	5	20	0.5	0.699	0.120
9	19	6	30	-0.5	0.672	0.120

Table 4. Range analysis results of kerf widths
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Table 4. Range analysis results of kerf widths
Factor Kerf width R /(10^-2 mm)
$\begin{matrix} {k_{1}}_{} \end{matrix}$ /(10^-2 mm) $\begin{matrix} {k_{2}}_{} \end{matrix}$ /(10^-2 mm) $\begin{matrix} {k_{3}}_{} \end{matrix}$ /(10^-2 mm)
A 0.572 0.553 0.695 0.142
B 0.686 0.603 0.531 0.155
C 0.608 0.626 0.585 0.041
D 0.640 0.567 0.613 0.073

Table 5. Range analysis results of kerf depths
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Table 5. Range analysis results of kerf depths
Factor Kerf depth R /mm
$\begin{matrix} {s_{1}}_{} \end{matrix}$ /mm $\begin{matrix} {s_{2}}_{} \end{matrix}$ /mm $\begin{matrix} {s_{3}}_{} \end{matrix}$ /mm
A 0.107 0.117 0.120 0.013
B 0.109 0.120 0.115 0.011
C 0.112 0.117 0.115 0.005
D 0.112 0.120 0.112 0.008

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Tianyu Chen, Mingdi Wang, Guilin Yang, Kai Liu, Keming Shi. Removal of Cable Shield Material by YAG Laser[J]. Acta Optica Sinica, 2017, 37(12): 1214002

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