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首页> 外文期刊>Journal of Heat Transfer >Numerical Simulation of Excimer Laser Cleaning of Film and Particle Contaminants
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Numerical Simulation of Excimer Laser Cleaning of Film and Particle Contaminants

机译：准分子激光清洗薄膜和颗粒污染物的数值模拟

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摘要

Laser cleaning is a promising surface preparation technique for applications in high value manufacturing industries. However, understanding the effects of laser processing parameters on various types of contaminants and substrates, is vital to achieve the required cleaning efficacy and quality. In this paper, a two-dimensional transient numerical simulation was carried out to study the material ablation characteristics and substrate thermal effects in laser cleaning of aerospace alloys. Element birth and death method was employed to track the contaminant removal on the surface of the material. The result shows that contaminant ablation increases with laser power and number of pulses. The finite element method (FEM) model is capable enough to predict the optimum number of pulses and laser power required to remove various contaminants. Based on the simulation results, the mechanism of the excimer laser cleaning is proposed. Thus, the use of numerical simulation can be faster and cheaper method of establishing the optimum laser cleaning window and reducing the number of experimental tests.
机译：激光清洁是用于高价值制造业的一种有前途的表面处理技术。但是，了解激光加工参数对各种类型的污染物和基材的影响，对于实现所需的清洁效果和质量至关重要。本文进行了二维瞬态数值模拟，研究了航空合金激光清洗中材料的烧蚀特性和基体热效应。采用元素生死法来跟踪材料表面上的污染物去除。结果表明，随着激光功率和脉冲数量的增加，污染物的烧蚀增加。有限元方法（FEM）模型足以预测去除各种污染物所需的最佳脉冲数和激光功率。根据仿真结果，提出了准分子激光清洗的机理。因此，使用数值模拟可以更快，更便宜地建立最佳的激光清洁窗口并减少实验次数。

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  • 来源
    《Journal of Heat Transfer》 |2013年第12期|121301.1-121301.12|共12页
  • 作者

    S. Marimuthu; A. Mhich; I. S. Molchan; D. Whitehead; Z. B. Wang; P. Mativenga; L.Li; Z.Liu4C. Grafton-Reed; S. Cheetham; S. Dilworth;

  • 作者单位

    Laser Processing Research Centre,School of Mechanical, Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL.UK;

    Corrosion and Protection Centre,School of Materials,he University of Manchester,Manchester M13 9PL, UK;

    Corrosion and Protection Centre,School of Materials,he University of Manchester,Manchester M13 9PL, UK;

    Laser Processing Research Centre,School of Mechanical, Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL, UK;

    Laser Processing Research Centre,School of Mechanical, Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL, UK;

    Laser Processing Research Centre,School of Mechanical, Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL, UK;

    Laser Processing Research Centre,School of Mechanical, Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL, UK;

    Rolls-Royce pic,P.O. Box 31,Derby DE24 8BJ, UK;

    BAE Systems (Operations) Limited,Farnborough,Hants GU14 6YU.UK;

    BAE Systems (Operations) Limited,Farnborough,Hants GU14 6YU.UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    heat transfer; laser cleaning; numerical simulation; titanium alloys; excimer laser;

    机译：传播热量;激光清洗;数值模拟钛合金准分子激光;

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