LEIFELD machine tools for metal forming

What are spinning and flow forming machines?

Machine tools such as spinning and flow forming machines form metals without cutting, i.e. without material loss. In contrast to machining processes (e.g. milling or turning), that produce chips, the metal is permanently deformed by targeted pressure during chipless forming – for example in the form of a round blank or a preform that forms the desired contour when rotated around a forming mandrel.

What are the different metal forming technologies?

Spinning In metal spinning, a rounded blank is transformed into a rotationally symmetrical hollow body by chipless forming with a rotating spinning roller. The preform is clamped against a spinning chuck and gradually formed with a spinning roller until it reaches the final contour. Additional processing such as flanging or cutting off edges can be carried out in the same clamping.

How does chipless metal forming with machines work?

Flow Forming and flow forming machines work according to the principle of plastic deformation of metals. This means that the metal is deformed under the influence of high forces in such a way that it permanently changes its shape without removing any material.