The flow forming is based on the rolling / roller spinning technology. The main difference is that the tool is not a roller, which moves along a specific contour. It is more about a pot-shaped tool with an incorporated forming shape. Parts produced with this technology have to be rotationally symmetric.
Tolerances: Despite the fact that flow forming is a hot forming process, this technology is able to achieve a tolerance of +/- 0.1mm in length and, based on the part design, also a tolerance of max. +/- 0.1mm in the diameter.
Most interesting applications for this forming Technology: