Saturday, February 12, 2011

Lamborghini Aventador: the carbon frame

After having revealed many details about engine and suspension system, continues to reveal the long-awaited Lamborghini LP 700-4 Aventador publishing details of the sophisticated carbon-fiber monocoque chassis of the future "V12" to be unveiled in its final form at the Fair Geneva. Made from fiber reinforced CRFP, the unpublished case is the result of a process performed in compression that guarantees a better resistance in case of an accident, but is also extremely light with a weight of 147.5 kg.

At the front and rear of the monocoque were mounted on aluminum mounts for the work on the V12 engine, the 7-speed gearbox and sophisticated suspension with push-rod. The system chassis weighs 229.5 kg as a whole by offering an incredible torsional rigidity of 35,000 Nm, much higher than that offered by the Murcielago which is equal to 20,000 Nm These figures translate into a control and an excellent steering precision, that make the new Lamborghini supercar capable of responding to even the slightest steering input, moving on a production car in the precision of a racing car balanced perfectly.

To work the carbon fiber CRFP were adopted three different techniques which differ among themselves, as well as the different production processes, including the type of carbon fiber used and the chemical composition of the synthetic resin used. For example, the Resin Transfer Moulding (RTM) provides for the use of a special resin on the heated rolls used in carbon fiber, after which they are hardened, while the component is in the works.

This system has been patented under the name "RTM-Lambo", and has the advantage of faster, more flexible and efficient. The second system is called Prepareg rolls and provide for the fiber impregnated in resin and stored at low temperatures. Subsequently the rolls are rolled into molds and cured in an autoclave with heat and pressure, resulting in a better finish.

The third processing technique called Braiding and provides the web of carbon fiber with RTM technology and diagonally arranged on multiple layers to create tubular elements for special applications such as structural uprights and profiling of the bottom.

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