Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Hydroforming of deep-drawn preforms starting from blanks with locally different flow properties

Project Status: finished


The main objective of this research project is to integrate the conventional deep drawing process and sheet metal hydroforming in a single tool. Especially in case of tailor-made pre-products such as tailor welded blanks or patchwork blanks the rigid punch allows a controlled material flow and therefore the production of appropriate preforms. During the hydroforming stage complex shape elements can be produced and a homogeneous hardening distribution is achieved. Furthermore, the hydroforming operation allows the production of undercuts within the part geometry.

Research Groups

Letztes Update: 28.04.2010