Device and method for pressing a plastically deformable blank

A device for continuous pressing of a blank (15) plastically deformable as a tridimensional profile with an area of ​​predetermined cross section, comprising fixed (10; 110; 210; 310) an array with an opening (11) it formed therein, through which is intended to be pressed the blank (15) plastically deformable, and at least one matrix (12, 312) disposed adjacent the opening (11) and rotatable about an axis ( C) which extends transversely to the pressing direction (a), said matrix having one or more recesses in its peripheral surface for forming the blank as a tridimensional profile with transverse sectional parts during the rotation of the matrix, characterized because the rotary die has a varying pitch radius as seen from the axis, which allows pressing of sections with varying cross section.