Avec le développement de la vitesse rail technologie et augmentation géographique couverture, l’aviation industrie est confrontée de plus en plus sévère pression concurrentielle. Surtout dans le contexte de l’époque quand aviation entreprise a été significative affectée par la rampante nouvelle couronne épidémie et environnement catastrophes sont fréquentes du à global réchauffement, comment réduire vol coûts et serre gaz émissions est un problème que le aviation industrie doit considérer. On top of that, cependant, aviation safety is the top priority. The high performance, fatigue résistance and erosion resistance of airplane parts are the basic requirements for navigation safety. The application of laser technology provides a boost to aviation safety, cost reduction and carbon eémission reduction.
The aircraft maintenance process requires regular repainting of the airframe surface. Before painting, the original paint must be removed from the fuselage surface. Repairing localized minor cracks and defects. Traditional aircraft paint removal methods include sandblasting, chemical cleaning, hand grinding and polishing. One of the sandblasting (shot blasting, dry ice) method (about 20 percent of the total amount of cleaning) for the contact cleaning, easy to cause damage to the workpiece, affecting the mechanical properties of the machinery, pollution of the environment. Chemical methods (about 75 percent of the total amount of cleaning) most of the benzene solvent immersion, scraping process to remove paint. Solvent toxicity, non-degradation, can not be dealt with, pollution of the environment, occupational health hazards; cleaning time cycle is long, there is corrosion and secondary pollution of parts. Manual grinding and polishing methods (about 5 percent of the total amount of cleaning) for contact cleaning, damage to the surface of the workpiece, affecting mechanical properties. Labor intensity, cleaning quality is not controlled.
The use of laser cleaning machine instead of traditional cleaning process to remove the aging aircraft paint is an optimal choice. Laser paint for non-contact cleaning, laser energy is absorbed by the paint layer, is reflected by the substrate, the mechanical properties of the parts are not affected, corrosion resistance, laser cleaning does not damage the substrate; laser paint does not use chemicals, no pollutant emissions, solid waste is easy to collect and handle, no secondary pollution of the parts, green; laser cleaning equipment is easy to automate and intelligent cleaning, cleaning process can be The laser cleaning equipment is easy to implement automated intelligent cleaning, cleaning process can be copied, repeated implementation, high cleaning quality, good consistency; laser paint removal process without consumables, low equipment operating costs. Laser stress-free and non-destructive green cleaning advantages for aircraft maintenance provides safety and quality assurance.
So far, the countries on the surface of aviation equipment laser paint removal has carried out a variety of attempts. Following the development track of laser light source, automatic and semi-automatic online and offline laser cleaning equipment using CO2 laser light source, Nd:YAG laser light source and fiber laser light source have been developed, specializing in the application of paint removal on the surface of fixed-wing and rotary-wing aircraft. Different lasers produce different wavelengths of laser output, offering the possibility of choosing the right laser light source for a subdivided range of paint removal applications.
En récent années, certains domestique aviation professionnel recherche instituts et universités ont également réalisé de certains recherche sur avion laser peinture enlèvement. De l’application de laser nettoyage technologie, le aviation composants pour soudage, collage avant prétraitement, post-soudage traitement, avion maintenance à enlever saleté, huile et graisse enlèvement et autres aspects de l’application est relativement mature. Le retrait des revêtements fonctionnels sur le fuselage test et effet analyse est aussi dans progrès. Due aux caractéristiques spéciales de l industrie aviation, a processus à être appliqué dans production dans addition à le fiable technique support, dur météo environnement test, mais aussi à travers le strict approbation processus, par la mise en œuvre progressive du processus du processus du point à point.
