A method for producing a three-dimensionally shaped structural component, apparatus for producing a three-dimensionally shaped structural component and three-dimensionally shaped structural component

摘要

The invention relates to a method for producing a three-dimensionally shaped structural component (1), wherein a) a molding tool (3) having a cavity (5) having an inner wall is provided; b) material is introduced into the cavity (5) of the molding tool (3) by means of an extrusion or coextrusion head (7) and a preform (11), in particular a hollow profile hose, having at least one interior space (24) is formed; c) an outer wall of the preform (11) is sucked against the inner wall of the cavity (5) by creating a negative pressure between the outer wall of the preform (11) and the inner wall of the cavity (5); d) a gaseous and / or foam-like medium is introduced under pressure into the at least one inner space (24) of the preform (11); and e) the three-dimensionally shaped, in particular tubular, structural component (1) is obtained. The method is characterized in that the medium is introduced into the interior (24) of the preform (11) by means of at least one blowing device (13) arranged in or on the extrusion or coextrusion head (7), and steps b), c ) and d) are carried out simultaneously.