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Carbon: wheel rims, floor boards and pistons
TKART Staff
08 June 2016

Carbon fibre is still a relatively recent material, with characteristics of lightness and impressive resistance, such as to replace, especially in motor sport, including karts, materials such as steel, aluminium, magnesium and titanium. At least for certain applications.

Carbon fibre is composed of carbon filaments of infinitesimal thickness (5-10 micrometres).

Equipped naturally of great tensile strength, this increases further when the filaments are intertwined, as is the case for the wires of the top of a boat.
The resistance of the filaments, however, only regards torsion. To also make the carbon resistant to bending and compression, the fibre must be combined with a resin, creating what is called a composite material.

CARBON AND MOTORSPORT 
Carbon is widely used in motorsport, particularly in F1, but with strict limits. In karting, for example, it is forbidden in the construction of chassis. It may, instead, be used for seats, floor boards and chain covers, with a good weight saving and an increase in rigidity. In fact, carbon has elastic properties, and it is therefore resistant to bending and torsion, significantly higher than either steel, used to manufacture standards floor boards, and fibreglass, used for the seats. It is interesting how some companies have even dared to try and make wheel trims and pistons out of carbon composite, but were unsuccessful.

WEIGHT
Components (bearing housings, wheels, pedals, hubs, small parts, etc.) made of aluminium and magnesium are used for karts. The difference is related both to weight and performance, given the different levels of rigidity and the different coefficients of heat dispersion of the two materials.
In recent years, carbon …(keep reading on the "TECH FOCUS" TKART Magazine channel)

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