Depending on which way and what made the wheels, are very different their technical characteristics, appearance and price. Punching steel wheels Steel is the least expensive construction material. Therefore, steel wheels until the mid-twentieth-century monopoly ruled the roads, and even now on the annual volume of issuance in the world by a wide margin, they firmly hold the leading position. Components of the wheel – the rim and CD – vyshtampovyvayutsya of steel sheet, roll and welded to each other. Steel does not have the corrosion resistance, for this reason that the wheels are made out of it, cover the primer, enamel and varnish. The main advantages of these wheels are traditionally low price and a sufficient ductility of the material, allowing the wheel during the impact is not burst, and deformed. The latter circumstance – a very important argument in favor of security, because the wheel is not completely destroyed, while maintaining some semblance of its geometry, and there is a possibility no depressurization bus. For this reason, steel wheels after injury may subject to flattening (recovery).

Of the shortcomings of forged wheels usually are their high weight, due to the required thickness, the lack of geometric precision manufacturing, poor corrosion stability and not too diverse design. Cast alloy wheels are not satisfied with the construction characteristics of steel, engineers began to look for lighter-weight materials. Thus, in the sixties were first fabricated aluminum alloy wheels. And in the future are still used, and magnesium (other metals are not taken root.) In dealing with these materials, it became expedient to make the wheel casting. The most common gravity method – casting under low pressure, with back pressure.