1. Setting the process in motion:

The flat circular blank (or deep-drawn bowl) is clamped centrally onto the tool with a pressure plate. The main spindle and circular blank begin to rotate.

2. Profiling:

Multiple forming rollers with different external profiles then press the preform against the spindle nose. The combination of pressure and friction causes the material to flow. Several passes are made until the desired external profile of the workpiece is achieved.