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Investigation into CO2 laser cleaning of titanium alloys for gas-turbine component manufacture
Turner, MW; Crouse, Philip; Li, Lin; Smith, AJ
Applied Surface Science. 2006;252:4798-4802.
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Abstract
This paper reports results of the investigation into the feasibility of using a CO2 laser technology to perform critical cleaning of gas-turbine aero-engine 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.