Spun Forged Definition
Spun Forged wheels are sometimes also called Flow Formed, Rotary Formed, or Rotary Forged (there are a few different names for this process). These wheels start as a cast wheel that's placed into a machine that spins it quickly, while steel rollers apply pressure to stretch the barrel downward to its final size and specifications. This process stretches and compresses the aluminum, which increases tensile strength.
FAQ: Is flow formed better than cast?