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Laser ablation cleaning of the aeronautical jet engine turbine paddles

Napadłek W., Trawiński G.

Journal of KONES

2010

Vol. 17, No. 4

369-375

Preliminary results ablation of the laser cleaning was introduced in the article elements of the turbine engine of airplane (blades, guide rings, the chambers of oxidising). Cleaning of these units was realized to obtainment of the metallically fine superficial layer for the chosen melts of Fe - C and on the datum feature Nor, prepare to the processes welds or the spraying thermal of coating barriers thermal TBCS. The chosen results of the selection of parameters were introduced in the support about steorology and the cleanness of the superficial layer. Various parameters: laser radiation power density, impulse duration, the frequency control and the laser spot lap stage were applied in laboratory experiments. Laser radiation influence effects were estimated on the surface photo, microstructure, chemical composition in microzones investigation basis. The stereoscopic microscopy, electron scanning microscopy (SEM) and the X-ray analysis were used in investigations. Very good cleaning effects are from oxides, accumulations of turbine blades. In particular, studied elements of aircraft turbine engine, characteristic surface and area topography of heat resistant nickel alloy, tests results of chemical constitution in the characteristic micro-zones of surface layer of high-temperature creep are presented in the paper.

Laserowe oczyszczanie łopatek turbin lotniczych silników odrzutowych odlanych z żarowytrzymałego stopu na bazie niklu ŻS6K–WI

Napadłek W.

Prace Instytutu Metalurgii Żelaza

2009

T. 61, nr 5

105-109

Zaprezentowano wybrane wyniki oczyszczania laserowego łopatek turbiny silnika lotniczego, wykonanych z żaroodpornego stopu na bazie niklu ŻS6K–WI. W wyniku przeprowadzonych badań stwierdzono w warstwie powierzchniowej tego stopu szereg zanieczyszczeń typu organicznego i nieorganicznego, wynikających z samego procesu odlewania jak również z efektów oddziaływania czynnika ludzkiego. W wyniku selektywnego oczyszczania laserowego, uzyskano zarówno bardzo dobry efekt czystości powierzchniowej, jak również stwierdzono pewne zagrożenia wynikające z powstających nadtopień warstwy powierzchniowej.

It has been introduced selected results of laser cleaning of turbine blades for aircraft engine, made of ŻS6K–WI high-temperaturecreep resisting alloy on the basis of nickel. As a result of conducted investigations it was found in the superficial layer this alloy series impurities organic and inorganic type, which come from casting process as well as from effects of influence of human factor. as a result of selective laser cleaning it was obtained both very good effect of superficial cleanness and also was confirmed certain dangers come from arising partial meltings of superficial layer.