Extrusion process with extrusion press die and the extrusion press ram for the production of hollow bodies, consisting of a metallic material, as well as extrusion press tool

摘要

Extrusion process with extrusion press die and the extrusion press ram for the production of hollow bodies, consisting of a metallic material with at least one, over a section extending in the longitudinal direction, during the extrusion molding produced predetermined breaking point (12), characterized in that the predetermined breaking point (12) for example, by means of a thick material weakening at the inner side of the wall (11) of the hollow body (10) directly during the extrusion press step is formed and of the cross section of the at least one predetermined breaking point (12) has a trapezoidal shape, wherein on the adjacent parallel trapezoid side on the inside of the at least one lug-type surface section (13) as a further thick material weakening is implemented and, for example, in this case, the flow press die in the immersion end of the extrusion press ram (2) of the extrusion press tool at least one, non-revolving predetermined breaking points - shape element (4) is designed.n="17"