Method for Producing a Surface of a Component, Said Surface Having Reduced Drag and Component with Reduced Drag

Abstract

A method for the production of a riblet film, having at least one surface that reduces airflow resistance involves the provision of a metal film that is structured using a mechanical treatment.

Description

BACKGROUND AND SUMMARY OF THE INVENTION[0001]Exemplary embodiments of the present invention relate to a method for the production of a surface of a component with reduced airflow resistance. In particular, the component in this case is a structural component, such as is found in aircraft, helicopters, or flying bodies. After the method is carried out, the surface of the component has a reduced airflow resistance.[0002]The reduction of fuel consumption and the reduction of emissions of carbon dioxide / nitrogen oxide (CO2 / NOx) are important goals, particularly for the airplane industry or the automobile industry. In addition to lightweight construction for the purpose of reducing weight, and improving the degree of efficiency of engines, the reduction of airflow resistance is an essential component in the attempt to reach this goal.[0003]Methods for the production of surfaces that reduce the airflow resistance thereof are known. It has been known for a long time, and proven in oil chan...

AI Technical Summary

Benefits of technology

[0022]The OOL preferably has a porous structure. This topography ensures an inner interlock structure, for example of an adhesive, adhesive primer, or resin, with the riblet film made of metal, and ensures improved adhesion and long-term durability of the riblet film.

[0023]An adhesive primer is advantageously applied to at least the surface of the riblet film which is opposite the riblets. The adhesive primer can improve the adhesive strength of the riblet film on the component, such that the riblet film does not separate from the component during operation of the component. As a result, durable, long-term adhesion between the riblet film and the component is ensured.

[0024]The application of an adhesive primer protects the oxide layer from damage or alteration, for example as a result of scratching during the application of the riblet film to the component. The applied adhesive primer also enables storage or packing of the film between the production and the application thereof to the component.

[0025]The surface treatment of the surface of the rible

Problems solved by technology

The structured plastic films used to date, however, not only are deficient in their mechanical resistance, but also demonstrate degradation of the plastic film and the adhesive with which the plastic films are adhered to the aircraft.

The degradation can also lead to the plastic films becoming detached during operation.

Such a direct structuring of aircraft structures by means of casting processes or machining methods (structuring by laser, or micromachining, etc.) is, however, neither

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