Hollow Lateral Extrusion of Tubular Billets – Further Development of the Cold Forging Process

Abstract

Light weight engineering in structural design and use of lighter materials are becoming increasingly important in bulk metal forming. Results gained by a DGF funded project which will be introduced in the following, concerning novel advancements of hollow lateral extrusion. Paper exhibits further development of this process, so cold forged components having undercuts without using a lateral tool plane easily can be manufactured. Thereby, the focus of attention is on the tool design as well as on the analysis of the unmodified forming process. Therefore, experimentally investigations have been carried out, failures on components are analyzed and process limitations of an experimental setup for cold forging of hollow billets at room temperature are illustrated.