Spinning / Flowforming

Flowforming and spinning is an advanced metalworking process designed to efficiently manufacture near net round shapes from rotary forged blanks.


Highly specialized CNC spinning equipment applies the force of one or more rollers to the outside diameter of the forged blank. The material is then mechanically worked beyond its yield strength and flows in the desired direction over a mandrel. The rollers and mandrels are all rotating. The inside geometry of the finished product takes the shape of the mandrel while the CNC roller program determines the external shape.


Benefits from spinning include reduced material and machining time as a result of the near net shape, efficient cycle times and excellent mechanical properties.