Corrosion and wear performance of aircraft skin after laser cleaning

Zhu, Guodong; Wang, Shouren; Wei, Cheng; Ren, Yuan; Ding, Wen

doi:10.1016/j.optlastec.2020.106475

Cited by 65 publications

(21 citation statements)

References 24 publications

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“…As a new cleaning method, laser cleaning is also gradually used in manufacturing industry (Zhang et al, 2020). Laser cleaning is used to remove compound contaminants on the surface of tire molds (Jia et al, 2019), paint on the surface of aircraft skins (Zhu et al, 2020a(Zhu et al, , 2020b, rust on the surface of bridge steel (Park et al, 2020), stains on the surface of cultural relics (Andreotti et al, 2016), mold on the surface of paper (Rosati et al, 2014), etc. Laser cleaning has been considered as a promising method to remove surface contaminants, including oxides before welding in recent years (Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Welds made with 50-ns pulse width laser-cleaned Ti-3Al-2.5V alloy tubes with no defects have been achieved (Kumar et al, 2010). Laser cleaning pretreatment reduces many defects such as pores and crack inside the HSLA steel weld, thus improving the tensile properties of the weld (Zhu et al, 2020a(Zhu et al, , 2020b. After cleaning the oxide film of 5A06 aluminum alloy with 10-ns pulse width laser, it can be found that melting and solidification occurred in the irradiated area, and oxygen content was dropped significantly after laser cleaning (Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effect of narrow pulse width laser cleaning on corrosion resistance of A5083-H111 aluminum alloy

Wang

et al. 2021

ACMM

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Purpose The purpose of this paper is to promote the corrosion resistance of the 5083-111H aluminum alloy by laser cleaning. Design/methodology/approach Laser with 2 ns pulse width was adopted in this project and the corrosion resistance of cleaned samples was tested by copper-accelerated salt spray (CASS). The surface morphology, elemental composition and distribution were then characterized by SEM. Moreover, surface morphology, elemental composition and distribution were also tested. Findings Results suggested a higher corrosion resistance was successfully obtained by laser cleaning. Compared with samples cleaned by 2000 grit sandpaper, mechanical cleaning resulted in a 53% larger height difference between the peak and valley. The content of the oxygen is 8.85% on the surface cleaned mechanically and the distribution is dependent on the distribution of aluminum whereas that of the laser cleaning sample is 24.41% and the distribution existed even in the Al-poor area. Originality/value In this project, the 2-ns laser cleaning was proved to have the capability to remove the oxide layer on the aluminum alloy surface while retaining an excellent corrosion resistance and smooth surface. Meanwhile, a thorough elemental distribution and smaller grain size lead to a smaller difference in elemental concentration. This retards the diffusion of oxygen into the substrate and hence increases the corrosion resistance of the surface.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of narrow pulse width laser cleaning on corrosion resistance of A5083-H111 aluminum alloy

Wang

et al. 2021

ACMM

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“…Laser cleaning technology is being lauded as a promising alternative for resolving this issue, and demand for it continues to grow year after year [4][5][6][7]. According to previous research, laser cleaning technology enables environmentally friendly work and significantly reduces process costs when compared to mechanical and chemical cleaning technologies [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Laser Removal of Epoxy Coatings on SS400 Surface by Beam Scanning Patterns

Kim

Lee²,

Hyun

et al. 2021

Coatings

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Shipyards are very interested in improving their working environment and resolving environmental pollution issues by replacing mechanical cleaning technologies used before and after painting processes with laser cleaning technology. Because epoxy paint is thickly coated, with a thickness of 200 μm or greater, it is difficult to remove using both laser cleaning and mechanical cleaning technologies. Therefore, this study tried to obtain effective cleaning results by controlling the process parameters when removing the thick epoxy coating using a Q-switching fiber laser cleaning system with an average power of 100 W developed by our research team. The pulse duration time of the laser is 150 ns. Additionally, in order to determine whether the cleaning was sufficient, the difference in laser-induced plume/plasma was compared. By controlling the beam scanning patterns, line overlap rate, and pulse overlap rate, it was possible to obtain effective cleaning results without introducing removal deviation. In addition, the NOP increased when the laser beam overlap rate increased. This increased the amount of heat input to the material and reduced the number of scans required to remove the epoxy paint. As a result of the plume/plasma analysis, less plume/plasma was generated as the paint was removed if the epoxy paint remained on the surface. On the other hand, when all of the paint was removed, a higher brightness of plume/plasma generated by evaporation of the bare metal was observed.

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“…La utilización de materiales compuestos con refuerzos de fibras ha contribuido en la fabricación de aeronaves, especialmente en las superficies de vuelo. Varias investigaciones proponen considerar materiales alternativos para su uso en aeronaves, estas aeronaves tienen estrictas necesidades de seguridad, por lo que los materiales por emplear se someten a un control estricto (Zhu et al, 2020;Zimmermann & Wang, 2020). Adicional a un proceso de fabricación, es necesario tener alternativas de configuración y fabricación del material para reparar los componentes de las aeronaves.…”

Section: Introductionunclassified

Ensayos experimentales y análisis numérico de la estructura del material compuesto alternativo para la reparación de superficies de vuelo en aeronaves

et al. 2021

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En la actualidad, los materiales compuestos de matriz polimérica son utilizados en múltiples aplicaciones, una de las áreas más importantes de aplicación es en el sector aeronáutico, debido a la relativamente baja densidad que tienen los materiales combinados. Estos compuestos tienen buenas propiedades mecánicas, comparables con materiales metálicos, pero que aportan beneficios adicionales. El objetivo de este trabajo es hacer los ensayos experimentales y el análisis numérico de la estructura del material compuesto alternativo para emplearlos en la reparación de las superficies de vuelo de aeronaves del CIDFAE. Se manejó un proceso ampliamente extendido de envasado al vacío (vacuum bagging) para obtener un compuesto más homogéneo, Lo que redujo los defectos en el procesamiento, y controló mejor la fracción de las fibras y el espesor global del compuesto. Se elaboraron probetas de resina epóxica reforzada con capas de tejido plano de tres fibras distintas de: carbono, vidrio y aramida, en diferentes orientaciones, que fueron ensayadas a tracción, flexión e impacto para determinar sus propiedades mecánicas. Se ha demostrado que los resultados conseguidos mediante la metodología analítica y el método de elementos finitos son aproximados a los resultados que se obtienen con ensayos destructivos. Los resultados experimentales muestran que los valores de resistencia a la tracción son mayores en los materiales de resina epóxica reforzados con 4 capas de fibra de carbono en orientación 0°-90°.

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Corrosion and wear performance of aircraft skin after laser cleaning

Cited by 65 publications

References 24 publications

Effect of narrow pulse width laser cleaning on corrosion resistance of A5083-H111 aluminum alloy

Effect of narrow pulse width laser cleaning on corrosion resistance of A5083-H111 aluminum alloy

A Study on the Laser Removal of Epoxy Coatings on SS400 Surface by Beam Scanning Patterns

Ensayos experimentales y análisis numérico de la estructura del material compuesto alternativo para la reparación de superficies de vuelo en aeronaves

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