26 June 2017 Analysis and 3D inspection system of drill holes in aeronautical surfaces
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Abstract
In aerospace industry, the structure of the aircraft is assembled using small parts or a combination of them that are made with different materials, such as for instance aluminium, titanium, composites or even 3D printed parts. The union between these small parts is a critical point for the integrity of the aircraft. The quality of this union will decide the fatigue of adjacent components and therefore the useful life of them. For the union process the most extended method is the rivets, mainly because their low cost and easy manufacturing. For this purpose it is necessary to made drill holes in the aeronautical surface to insert the rivets.

In this contribution, we present the preliminary results of a 3D inspection system [1] for drill holes analysis in aeronautical surfaces. The system, based in optical triangulation, was developed by the Group of Optoelectronic Image Processing from the University of Valencia in the framework of the Airbus Defence and Space (AD&S), MINERVA project (Manufacturing industrial - means emerging from validated automation). The capabilities of the system permits to generate a point cloud with 3D information and GD&T (geometrical dimensions and tolerances) characteristics of the drill hole. For the inner surface defects detection, the system can generate an inner image of the drill hole with a scaled axis to obtain the defect position. In addition, we present the analysis performed for the drills in the wing station of the A-400 M. In this analysis the system was tested for diameters in the range of [10 – 15.96] mm, and for Carbon Fibre.
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R. Rubio, R. Rubio, L. Granero, L. Granero, M. Sanz, M. Sanz, J. García, J. García, V. Micó, V. Micó, } "Analysis and 3D inspection system of drill holes in aeronautical surfaces", Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 1032948 (26 June 2017); doi: 10.1117/12.2270302; https://doi.org/10.1117/12.2270302
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