Carbon fibre prefom with two different textile stiffeners integrated by stiching. For each component the most convenient textile technology has to be choosen according to respective requirements. An aramide stitching yarn is used for the combination of several basic textiles and can be used in specific cases as a 3d-fibre reinforcement for improved damage tolerance in the composite part.
Carbon fibre prefom with two different textile stiffeners integrated by stiching. For each component the most convenient textile technology has to be choosen according to respective requirements. An aramide stitching yarn is used for the combination of several basic textiles and can be used in specific cases as a 3d-fibre reinforcement for improved damage tolerance in the composite part.
Automated manufacturing of preforms for composite structures by robot assisted braiding. Up to 216 carbon fibre yarns are placed around a core to form a net shaped fibre structure with optimized reinforcing fibre geometry. By appropriate impregnation processes a cost-effective manufacturing of high perfomance composite structures is possible.
KombiTherm (ultrasonically excited thermography): By means of a high power ultrasonic generator structures are excited with a 40 kHz sine wave. This mechanical shaking of the structure generates at defect locations a heat loss which can be measured dynamically with the help of a Infrared Camera System. The local heating effect caused by a delamination in CFRP can be seen on the screen in the background. This principle works also on metallic structures e.g. for detection of cracks and corrosion.
RESIN TRANSFER PUMP in front of an AUTOCLAVE The high-capacity pump injects thermosetting resin inside the specific moulds, which are placed inside an oven, an autoclave or between the plates of a press. The main composite parts are polymerised in the autoclave, which is able to attain a temperature of 600 C and a pressure of 40 bar.
VIEW OF METALLOGRAPHIC LAB Metallography is the study of the constitution and structure of metals, alloys and composite materials. Many techniques that are used to produce an image of the microstructure are dealt with in this lab: optical microscopes, electron microscope, image analyser, hardness tester, ...
The Friction Stir Welding (FSW) process is purely mechanical, clean, environmentally friendly and capable to make weld lines of the highest quality. Other benefits are the ability to join certain dissimilar metallic materials and some aluminium alloys, which are difficult to weld by conventional fusion methods. The FSW process can use existing and readily available machine tool technology and the process is suitable for automation and now also adaptable for robot use. The relatively low residual stresses and the fine-grained, stirred zone result in very good strength properties together with good ductility, characteristics particularly important in aerospace applications. The pieces to be welded need only little surface preparation and the process can, to a certain extent, accept gaps and mis-alignment. This is a major advantage compared to fusion welding, where a special surface preparation is required. Welding filler metals or an inert gas are not necessary either. The FSW process creates very low noise levels and does not emit smoke, dust, dangerous plasma or x-rays
The Friction Stir Welding (FSW) process is purely mechanical, clean, environmentally friendly and capable to make weld lines of the highest quality. Other benefits are the ability to join certain dissimilar metallic materials and some aluminium alloys, which are difficult to weld by conventional fusion methods. The FSW process can use existing and readily available machine tool technology and the process is suitable for automation and now also adaptable for robot use. The relatively low residual stresses and the fine-grained, stirred zone result in very good strength properties together with good ductility, characteristics particularly important in aerospace applications. The pieces to be welded need only little surface preparation and the process can, to a certain extent, accept gaps and mis-alignment. This is a major advantage compared to fusion welding, where a special surface preparation is required. Welding filler metals or an inert gas are not necessary either. The FSW process creates very low noise levels and does not emit smoke, dust, dangerous plasma or x-rays
Mini-TEDs Aerodynamic research is tending towards the development of an adaptive wing that can constantly adjust its geometry to accommodate given flight conditions. Novel aerodynamic wing flaps: narrow, movable flaps on the trailing edge of an aircraftÕs wing redirects the airflow downwards and produces greater lift. The mini-TEDs can contribute to noise reduction and help lower pollutant emission.
Traditionally, the majority of all aircraft structural components have always been riveted or bonded. the alternative joining techniques for riveting "stringer" outer skin joints involves attaching reinforcing elements - stringers and clips - to the interior of the outer skin in order to increase the stability of the structure. In laser beam welding, filler wire is used to weld both sides of the stringer simultaneously onto the sheet metal of the outer cabin wall. Precise positioning of the stringer is achieved using a slide bar system. EADS is designing and assembling a highly flexible system for laser beam welding that comprises 2,300 individual parts with 180 different special components. When completed, the new system - which will replace the existing laser beam welding system mounted on an articulated robot - will be particularly suitable for research work and small-batch production.
Traditionally, the majority of all aircraft structural components have always been riveted or bonded. the alternative joining techniques for riveting "stringer" outer skin joints involves attaching reinforcing elements - stringers and clips - to the interior of the outer skin in order to increase the stability of the structure. In laser beam welding, filler wire is used to weld both sides of the stringer simultaneously onto the sheet metal of the outer cabin wall. Precise positioning of the stringer is achieved using a slide bar system. EADS is designing and assembling a highly flexible system for laser beam welding that comprises 2,300 individual parts with 180 different special components. When completed, the new system - which will replace the existing laser beam welding system mounted on an articulated robot - will be particularly suitable for research work and small-batch production.
European Aeronautic Defence and Space Company EADS N.V. Le Carré · Beechavenue 130-132 · 1119 PR Schiphol Rijk · The Netherlands
EADS Deutschland GmbH · 81663 Munich · Germany EADS France S.A.S. · 37, boulevard de Montmorency · 75781 Paris Cedex 16 · France EADS CASA · Ava. de Aragón, 404, 28022 Madrid · Spain
