The forging process uses high pressure and temperature to reconfigure the non-directional grain structure of an aluminum billet to the high integrity multi-directional grain structure of a forging. The aluminum remains solid throughout the process as the forging dies come together and reshape round billet to a shape that can be made into a wheel.

Forging the wheel blank in a single piece eliminates any possibility of porosity that ultimately leads to weakness and failure in non-forged wheels.  The resulting radial grain direction is perpendicular to operating loads, resulting in premium strength.