method and device for the manufacture of a strangfoermigen werkstueckes plastic and procedure according to the manufactured workpiece handling

摘要

Stiff or rigid elongated plastic workpiece, esp. a tube, is profiled on its outside by the stress-free deformation of a prefabricated workpiece, which has been given its basic shape. Profiling is effected without weakening the workpiece and may even strengthen the workpiece.