Tube spinning, also known as flow forming, is an incremental rotary forming process preferred for the manufacturing of thin-walled seamless tubes. As shown in Figure 10,
the process is closely allied to shear forming; the initial tube billet
is displaced axially along a mandrel, while the internal diameter
remains constant (34–36). It is
obvious that the tube spinning process is a local-loading process in
which tubular billet on a mandrel is thinned in thickness and elongated
in length by one or more rollers.
