Method for non-cutting fabrication of rotationally symmetrical body from circular plate blank

摘要

The present invention relates to a method for non-cutting production of a rotationally symmetrical body (17) from a circular sheet blank, said circular sheet blank (8) being formed by pressing around the inner mandrel (2) Shaped projecting portion 16 which is molded out of the bottom of the pot-shaped body 10 is molded by pressing it around the central projection 3 by molding. It is an object of the present invention to improve the above method, in particular to simplify fabrication, and to ensure defect-free concentricity of the molding areas. This is achieved by the fact that the circular sheet blank 8 is axially clamped between the inner mandrel 2 and the at least one projection 3 only in its radially inner region during the entire forming process.