Flow-formed wheels, also known as flow-forged wheels or flow-forging wheels, are a type of wheel manufacturing process that combines elements of casting and forging techniques. In this process, a wheel casting is placed in a special machine where it is spun at high speeds while simultaneously being heated. Flow-formed wheels are highly regarded for their combination of strength, lightweight construction, and aesthetic appeal. They are commonly used in high-performance and racing vehicles where weight savings and strength are both critical factors.