Investigation into CO2 laser cleaning of titanium alloys for gas-turbine component manufacture

This paper reports results of the investigation into the feasibility of using a CO2 laser technology to perform critical cleaning of gas-turbine aeroengine components for manufacture. It reports the results of recent trials and relates these to a thermal model of the cleaning mechanisms, and describ...

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Bibliographic Details
Published in:Applied surface science 2006-04, Vol.252 (13), p.4798-4802
Main Authors: TURNER, M. W, CROUSE, P. L, LI, L, SMITH, A. J. E
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Physical radiation effects, radiation damage
Physics
Structure of solids and liquids
crystallography
Surface cleaning, etching, patterning
Surface treatments
Ultraviolet, visible, and infrared radiation effects (including laser radiation)
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Summary:This paper reports results of the investigation into the feasibility of using a CO2 laser technology to perform critical cleaning of gas-turbine aeroengine components for manufacture. It reports the results of recent trials and relates these to a thermal model of the cleaning mechanisms, and describes resultant component integrity. The paper defines the experimental conditions for the laser cleaning of various aerospace-grade contaminated titanium alloys, using a continuous wave CO2 laser. Laser cleaning of Ti64 proved successful for electron beam welding, but not for the more sensitive Ti6246. For diffusion bonding the trials produced a defective standard of joint. Effects of oxide formation is modelled and examined experimentally.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2005.06.061