Bonding technology development of anodized aluminum alloy 6005 T6 used in aviation

Abstract

This article describes the testing process to determine bonding technology for aluminum alloys, this process was developed based on anodized 6005 T6 aluminum alloy research. The components of gyro rotor ie. the blades and blades pockets are made of that aluminum alloy. In the introduction of this paper advantages of the bonding process in aerospace industry are presented. Variants of surface preparation and selection of the adhesive (dedicated to aluminum two-component epoxy adhesives and epoxy resin with the filler) were described. Discussed the steps of preparing each of four of the proposed methods of surface preparation. The conduct of the study and test stand to provide a pure shear bonded joints were describes. The data acquisition system assured the registration course of force versus displacement. The advantages and disadvantages of selected variants joints for uses in aviation, taking into account the anode layer, which should not be violated during surface preparation were analyzed. On the basis of static shear strength and other criterias (ie. the ease of adhesive mixture preparation, adhesive application, surface preparation workload to minimize interference with the anodized layer, costs and time needed for a full curing) for optimal adhesion for 6005 T6 aluminum alloy were determined. Conducted research and the results of bonded joints static strength provide a basis for the use technology to the real object. Analysis of the results, taking into account all included criteria allowed to define optimum conditions for adhesive connection, selected adhesive for one of the tested bonding surface.

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