Removing paint from a metal substrate using a flattened top laser

In this paper,we investigate laser cleaning using a flattened top laser to remove paint coating from a metal substrate.Under the irradiation of a flattened top laser,the coating paint of the metal substrate can be removed efficiently by laser induced ablation,stress,and displacement force.The temper...

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Published inChinese physics B Vol. 21; no. 10; pp. 295 - 301
Main Author 施曙东 李伟 杜鹏 王萌 宋峰 刘淑静 陈念江 赵鸿 杨文是
Format Journal Article
LanguageEnglish
Published 01.10.2012
Subjects
Cleaning
Coating
Flattening
Lasers
Mathematical analysis
Paints
Protective coatings
位移计算
扁平
有限元分析
油漆涂层
激光去除
激光清洗
金属基板
顶部
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/21/10/104209

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Summary:In this paper,we investigate laser cleaning using a flattened top laser to remove paint coating from a metal substrate.Under the irradiation of a flattened top laser,the coating paint of the metal substrate can be removed efficiently by laser induced ablation,stress,and displacement force.The temperature distribution,stress,and displacement are calculated in the coating layer and substrate using finite element analysis.The effects of a Gaussian laser and a flattened top laser and the results of different diameters of laser spot are compared.The investigation shows that the flattened top laser can reduce the substrate damage and enhance the cleaning efficiency.This method meets the need of large area industrial cleaning applications by optimizing the flattened top laser parameters.
Bibliography:Shi Shu-Dong ,Li Wei ,Du Peng,Wang Meng,Song Feng ,Liu Shu-Jing ,Chen Nian-Jiang ,Zhao Hong , Yang Wen-Shi （ School of Physics,Nankai University,Tianjin 300071,China b） Department of Physics,College of Basic Medical Sciences,Tianjin Medical University,Tianjin 300070,China c） Science and Technology on Solid-State Laser Laboratory,Beijing 100015,China d） Electricity Department,Patent Office,Beijing 100088,China
In this paper,we investigate laser cleaning using a flattened top laser to remove paint coating from a metal substrate.Under the irradiation of a flattened top laser,the coating paint of the metal substrate can be removed efficiently by laser induced ablation,stress,and displacement force.The temperature distribution,stress,and displacement are calculated in the coating layer and substrate using finite element analysis.The effects of a Gaussian laser and a flattened top laser and the results of different diameters of laser spot are compared.The investigation shows that the flattened top laser can reduce the substrate damage and enhance the cleaning efficiency.This method meets the need of large area industrial cleaning applications by optimizing the flattened top laser parameters.
laser cleaning; laser ablation; finite element method; flattened top laser beam
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/10/104209