http://www.airplanessale.info/aircraft-technologies/
There is no doubt that the cost of producing the "next generation" aircraft operators should be as low as possible so that the aircraft sold at a price that allows operation of a profitable company. Advanced design concepts must be developed to achieve the goal of reducing costs manufacturing.
Current design practice for aluminum structures is based on the use of semi-finished products and buy all four categories in the form of products:
– 6% Forgings
– 13% Extrusions
– 17% thin sheets
– 64% thick plates
Obviously the use of thick plates remains an important part in the total amount of aluminum products needed. But large amounts of raw material machining distance for most applications today, ending in a purchase to fly very high regard.
Cost effective design of aluminum components tend to reduce the use of thick plates and increasing the use of extrusions and forgings or entering a whole new manufacturing technologies in order to keep buying Relationship to fly as low as possible. Extensive research and technology programs were initiated some years ago, the whole system of Airbus, to acquire and validate the progress needed on the most promising fabrication techniques, such as
– Aluminum castings
– Wing and fuselage panels integrally extruded
– Welded.
Just to mention some examples predominant
Casting is the most consistent "Near-net-shape" process. The cost saving potential investment castings is considerable for aluminum alloys. Due to the good surface quality, virtually no final processing is required.
The example of success is a bulk cargo door A320, which has now resulted in a study of industrial application for the A340-600 Airbus passenger door.
extruded panels to the fuselage with integral beams or, alternatively, at the girders welded compares very favorably with the riveting process today in terms weight and cost reduction. In riveted structures there is a substantial additional volume of the beam material and thickness of the extra skin to make the holes for the rivets.
Currently, Airbus partners traditionally producing airframe structures have large investments in machines laser beam welding C02 can produce integral panels, about 4 feet wide and 10 meters. Initial test panels are being manufactured to optimize the process and to gather statistical data. High welding speeds up to 15m/min and a high degree of automation allow a reduction in manufacturing costs of 20% compared to the riveting process automatic.
Extruded aluminum panels.
For wing structures technology for heavy panels and extruded long is under investigation. This principle has been used for many years by the Russian aviation industry, mainly in large transport aircraft designed by Antonov.
The large structure of 124 A wing, for example, is constructed from 44 panels extruded up to 28mm long. In fact, machining is still necessary to some extent, but Initial investigations showed a double benefit that could be obtained with reduced flying stock to buy for and a greater structural efficiency over conventional riveted structures.
Airbus wing design provides outstanding aerodynamic performance. But achieving this requires the use of double-curved panels wing complex, particularly near the end of the root where the thickness is greater. This presents a challenge demanding manufacturing, either taking into account our skins ongoing reinforcements integrally fixed or rigid panels. A process called Adaptive formation Creep (ACF) is being developed by Airbus Industrie consortium partners with various research organizations, which provides for the panel quick formation of a precise contour control with software tools to adapt. ACF process is also compatible with our automated wing assembly project box. This system, currently in the demonstration phase is to provide a Template least Assembly without tools, high-performance machine using the visual feature recognition and laser scanning position. This manufacturing process promises to maximize the use of the facilities of the factory. It offers higher production rates and flexibility to introduce or develop new products that are within the capacity of the machine geometry, in principle, by software changes alone.
Welding of thin fuselage structures using laser technology for welding thick wing panels, the friction welding technology is currently being investigated with results very promising.
Friction stir welding is a solid non-fusion welding process based on the research phase in a consortium with the IST. It is a process Continuous hot cutting. A non-consumable rotating tool of a material harder than the workpiece is passed along a joint between two sheets of closely packed.
The frictional heat creates a region around the pin plastic welding submerged consolidating behind forming a bond in solid phase.
This process makes a narrower heat affected zone than conventional welding. This allows the maintenance of a high proportion of properties of metals for parents of high strength heat-treated aluminum alloy.
Also suitable for long and high speed connections monitoring, using machines similar to grinding. It offers the possibility of low cost, high integrity assembly of the integral structure of the wings.
These few examples of innovation in the design and manufacture airframe give an indication how Airbus can improve overall aircraft efficiency.
Advanced metal and composite materials combined with new technologies manufacturing are the possible means to address the economic challenge to meet the expectations of carriers from 15% to 20% improved operating costs current aircraft transporting large.
There is no denying, however, that major efforts will be needed innovative technical approaches and industrial, in a world in which progress has become a process of generating increasingly autonomous.
With few opportunities in the current climate, companies in the United Kingdom and Marshall Aerospace are based on some long-term contracts. MA has begun the structural design and construction of the engine nacelles air for the new light jet and advanced HondaJet.
Rockwell International Highly Maneuverable Aircraft Technology (HiMAT)
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