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.
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December 2013
This article was originally published in
Journal of Heat Transfer
Research-Article
Numerical Simulation of Excimer Laser Cleaning of Film and Particle Contaminants
S. Marimuthu,
S. Marimuthu
1
Laser Processing Research Centre,
School of Mechanical, Aerospace
and Civil Engineering,
School of Mechanical, Aerospace
and Civil Engineering,
The University of Manchester
,Manchester M13 9PL
, UK
1Present address: School of Mechanical and manufacturing, Loughborough University, UK.
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I. S. Molchan,
I. S. Molchan
Corrosion and Protection Centre,
School of Materials,
School of Materials,
The University of Manchester
,Manchester M13 9PL
, UK
Search for other works by this author on:
L. Li,
L. Li
Laser Processing Research Centre,
School of Mechanical, Aerospace
and Civil Engineering,
School of Mechanical, Aerospace
and Civil Engineering,
The University of Manchester
,Manchester M13 9PL
, UK
Search for other works by this author on:
Z. Liu,
Z. Liu
Corrosion and Protection Centre,
School of Materials,
School of Materials,
The University of Manchester
,Manchester M13 9PL
, UK
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C. Grafton-Reed,
C. Grafton-Reed
Rolls-Royce plc
,P.O. Box 31
,Derby DE24 8BJ
, UK
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S. Dilworth
S. Dilworth
BAE Systems (Operations) Limited
,Farnborough
,Hants GU14 6YU
, UK
Search for other works by this author on:
S. Marimuthu
Laser Processing Research Centre,
School of Mechanical, Aerospace
and Civil Engineering,
School of Mechanical, Aerospace
and Civil Engineering,
The University of Manchester
,Manchester M13 9PL
, UK
I. S. Molchan
Corrosion and Protection Centre,
School of Materials,
School of Materials,
The University of Manchester
,Manchester M13 9PL
, UK
Z. B. Wang
e-mail: z.wang@bangor.ac.uk
L. Li
Laser Processing Research Centre,
School of Mechanical, Aerospace
and Civil Engineering,
School of Mechanical, Aerospace
and Civil Engineering,
The University of Manchester
,Manchester M13 9PL
, UK
Z. Liu
Corrosion and Protection Centre,
School of Materials,
School of Materials,
The University of Manchester
,Manchester M13 9PL
, UK
C. Grafton-Reed
Rolls-Royce plc
,P.O. Box 31
,Derby DE24 8BJ
, UK
S. Dilworth
BAE Systems (Operations) Limited
,Farnborough
,Hants GU14 6YU
, UK
1Present address: School of Mechanical and manufacturing, Loughborough University, UK.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received May 29, 2012; final manuscript received May 24, 2013; published online September 27, 2013. Assoc. Editor: Wilson K. S. Chiu.
J. Heat Transfer. Dec 2013, 135(12): 121301 (12 pages)
Published Online: September 27, 2013
Article history
Received:
May 29, 2012
Revision Received:
May 24, 2013
Citation
Marimuthu, S., Mhich, A., Molchan, I. S., Whitehead, D., Wang, Z. B., Mativenga, P., Li, L., Liu, Z., Grafton-Reed, C., Cheetham, S., and Dilworth, S. (September 27, 2013). "Numerical Simulation of Excimer Laser Cleaning of Film and Particle Contaminants." ASME. J. Heat Transfer. December 2013; 135(12): 121301. https://doi.org/10.1115/1.4024836
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