Wen-feng YANG, Zi-ran QIAN, Yu CAO, Gui-ming WEI, De-hua ZHU, Feng WANG, Chan-yuan FU. Research on the Controllability of Aircraft Skin Laser Paint Remove Based on Laser-Induced Breakdown Spectrum and Composition Analysis[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3233
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 3233 (2021)
Fig. 1. Schematic diagram and serial number of laser paint remove sample
(a): Paint remove sample of different layers; (b): Paint remove sample of different thickness
(a): Paint remove sample of different layers; (b): Paint remove sample of different thickness
Fig. 2. System diagram for on-line detection of LIBS
Fig. 3. LIBS spectra
(a): Before filtering; (b): After filtering; (c): After filtering of air
(a): Before filtering; (b): After filtering; (c): After filtering of air
Fig. 4. Morphology and energy dispersive spectroscopy (EDS) images of paint surface
(a): SEM of Tc-C; (b): SEM of Pr; (c): EDS of Tc; (d): EDS of Pr
(a): SEM of Tc-C; (b): SEM of Pr; (c): EDS of Tc; (d): EDS of Pr
Fig. 5. LIBS spectra
(a): Top coating; (b): Top coat removing(Partially); (c): Top coat removing(Completely); (d): Primer; (e): Primer removing(Partially); (f): Primer removing(Completely)
(a): Top coating; (b): Top coat removing(Partially); (c): Top coat removing(Completely); (d): Primer; (e): Primer removing(Partially); (f): Primer removing(Completely)
Fig. 6. The LIBS spectra peak intensity changes of the characteristic elements of topcoat and primer in the process of layered laser paint remove
Fig. 7. LIBS spectra
(a): Primer; (b): Primer removing (5 μm); (c): Primer removing (10 μm); (d): Primer removing (15 μm); (e): Primer removing (20 μm); (f): Primer removing (35 μm)
(a): Primer; (b): Primer removing (5 μm); (c): Primer removing (10 μm); (d): Primer removing (15 μm); (e): Primer removing (20 μm); (f): Primer removing (35 μm)
Fig. 8. LIBS spectra of single primer at different laser pulse
Fig. 9. LIBS spectra of Ti, Ca and Al elements irradiated by different laser pulse numbers
(a): Ti Ⅰ; (b): Ca Ⅱ; (c): Ca Ⅰ; (d): Al Ⅰ
(a): Ti Ⅰ; (b): Ca Ⅱ; (c): Ca Ⅰ; (d): Al Ⅰ
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Table 1. Power parameter of laser paint remove sample
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Table 2. Monitor on laser controllable paint remore of layer and thickness of aircraft skin based on laser-induced breakdown spectrum and composition analysis
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