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ALUMINIUM-the car makers metal of the year?With the launch of the A2, Audi AG introduced the first vehicle in the world to have a volume-built all-aluminium body. In 1996, series production of the Ate began. The A8 is the first luxury limousine made of aluminium, and the Audi plant in Neckarsulm produces to vehicles a year. The A8 combines high strength with low weight. At only 1690 kilos, the A8 3.2 is the lightest car in the luxury class. The third-generation Audi Space Frame now has fewer makes it easier to build the car in large quantities.other car makers are also starting to take aluminium seriously. As engine sizes have increased, cars have bacome more top-heavy. Using aluminium for the bonnet and front wings helps to get a better weight distribution between front and rear axles. Anower advantage of auminium is that it is cheaper to recycle than steel. This will be an important consideration in the future when the EU introduces tougher recycling regulations.But there are drawbachs to using aluminium. Replacing steel with aluminium is expensive; an aluminium body cost twice as much as a steel one. Not only are aluminium production rpocesses expensive, they are also difficult to implement. Because aluminium is more brittle and tears more easily than steel, it can only be formed when it is in an unhardened state. Furthermore, the aluminium used for the outer parts of the car, such as the wings and the doors, needs to be thicker than steel because it doesn't have the same stiffness. the dent-resistance of aluminium is also than that of steel.On the plus side, aluminium doesn't rust like steel, and in car crashes it has a higher energy absorption rate, which increases the cars active saferty.
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