Successes and challenges in laser cleaning metal artefacts: A review

Bertasa, Moira; Korenberg, Capucine

doi:10.1016/j.culher.2021.10.010

Cited by 45 publications

(15 citation statements)

References 64 publications

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“…This new technique seemed very promising for conservation treatments at a time where heritage objects needed cleaning more frequently [2]. Since Asmus' works, many studies on laser cleaning have been conducted and explored the differences induced by changing the laser parameters such as the emitting wavelength, the laser energy, and the pulse duration on different materials and various contaminants including biological colonization (lichens, algae) [3][4][5][6][7][8][9][10][11][12][13][14], black sulphated gypsum crusts [15][16][17][18][19][20][21][22][23][24], dirt and environmental soiling [25], corrosion products [26][27][28][29][30][31][32][33][34], or graffiti [35][36][37][38][39][40][41][42][43][44][45][46][47]…”

Section: The Development Of Laser Cleaning For Heritage Conservationmentioning

confidence: 99%

Towards safe and effective femtosecond laser cleaning for the preservation of historic monuments

et al. 2023

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We explore femtosecond laser cleaning of materials used in the construction of historic monuments, such as stone and steel covered in typical contaminants caused by harsh environments that may be found in urban areas. We address the cleaning of these materials from a conservation perspective, taking as examples the preservation and cleaning of iconic structures such as the steel and the granite of the Sydney Harbour Bridge, Hawkesbury sandstone, a popular building material of a variety of monuments in Sydney (Australia), Makrana marble taken from the Soami Bagh Samadh temple of Agra in India, and also graffiti removal. We demonstrate that femtosecond laser pulses can clean a range of different contaminants such as biofilm, environmental soiling, rust, and spray paints, while preserving the integrity of the underlying substrates. Femtosecond laser cleaning is a fast and effective method and a safer alternative to lasers with longer pulse durations for the preservation of historic monuments.

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Section: The Development Of Laser Cleaning For Heritage Conservationmentioning

confidence: 99%

Towards safe and effective femtosecond laser cleaning for the preservation of historic monuments

et al. 2023

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“…It has some benefits, including high control precision, high decontamination efficiency, good decontamination quality, broad application potential, minor substrate damage, an environment-friendly process, easy automation, and cheap operating costs [ 20 , 21 ]. It is considered to be the most reliable and efficient green decontamination technology [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Research Progress and Challenges in Laser-Controlled Cleaning of Aluminum Alloy Surfaces

et al. 2022

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Aluminum alloys have been widely utilized in automobiles, aircraft, building structures, and high-speed railways industries due to their excellent structural and mechanical properties. Surface oxide film removal prior to aluminum alloy welding and old paint removal prior to repainting aluminum alloy surfaces are critical factors in ensuring the welding quality and service life of aluminum alloy products. Because of its unique advantages, such as environmental protection and precision control, laser-controlled cleaning has great application potential as a surface cleaning technology in removing oxide films and paint layers on aluminum alloy surfaces. In this paper, the mechanism of laser cleaning of oxide films and paint layers on aluminum alloy is discussed. Furthermore, the impact of various processing parameters such as laser beam power, energy density, scanning speed, and so on is analyzed in detail. After laser cleaning, the corrosion resistance, welding performance, adhesive performance, and other properties of the aluminum alloy are optimized. This paper also discusses several real-time detection technologies for laser cleaning. A summary and the development trend are provided at the end of the paper.

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“…Laser cleaning represents a green and effective alternative to solvent washing, which has progressively become an entrenched cleaning process for a range of artefacts [22] because of appealing properties such as versatility and simplicity of the device operation in addition to the lack of hazardous chemicals [23,24]. However, while the oxide removal through a laser beam is already present in the literature, studies on the lubricants removal, such as oil and grease, lack [25].…”

Section: Introductionmentioning

confidence: 99%

“…However, while the oxide removal through a laser beam is already present in the literature, studies on the lubricants removal, such as oil and grease, lack [25]. Despite several reports on laser cleaning effectiveness, its industrial application to metal is not widespread as the findings of these studies indicate that the laser cleaning outcomes are heavily case-dependent [22]. In general, the removal mechanism is a function of the grease layer thickness, its light absorbance, and the laser light fluence [25].…”

Section: Introductionmentioning

confidence: 99%

Technical, environmental, and economic feasibility investigation of an innovative dry washing process for metal degreasing

Rubino

Marconi

Baiocco

et al. 2022

Int J Adv Manuf Technol

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Industrial washing is essential in manufacturing and many other technological fields. Nowadays, steam washing is the most common technique. However, it involves chemical solvents which are potentially noxious for the environment and difficult to be disposed of. Therefore, there is a growing demand for alternative washing techniques that would ensure low operating costs, extensive productivity, high efficiency, environmental sustainability, good compatibility with different materials, and safe operating conditions. A fluidized bed (FB) represents a promising alternative to satisfy market requirements. In this study, a prototype of FB machine for the degreasing of pressure vessels was designed, built, and compared to the current solvent washing machine. The scope of the work is to assess the technical, environmental, and economic feasibility of a FB device for industrial washing. The analysis of variance (ANOVA) was carried out to detect the process parameters influencing the cleaning. The optimal process parameters were identified based on the experimental results. Life cycle assessment (LCA) and cost analysis were performed to evaluate environmental impacts, and operating costs. The results confirmed the validity of FB technology as an alternative to current washing techniques thanks to its higher cleanness, minor environmental impact and costs, and comparable productivity.

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Successes and challenges in laser cleaning metal artefacts: A review

Cited by 45 publications

References 64 publications

Towards safe and effective femtosecond laser cleaning for the preservation of historic monuments

Towards safe and effective femtosecond laser cleaning for the preservation of historic monuments

Research Progress and Challenges in Laser-Controlled Cleaning of Aluminum Alloy Surfaces

Technical, environmental, and economic feasibility investigation of an innovative dry washing process for metal degreasing

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