Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Hydroforming of deep-drawn performs with special consideration of tailor-made products

Datum: 07.09.2007



  • Prof. Dr.-Ing. Dr.-Ing. E.h. mult. Dr. h.c. mult. M. Geiger
  • Prof. Dr.-Ing. habil. K. Willner

The application of tailor-made semi-finished products offers an extensive potential for the production of innovative lightweight components. However, this potential for mass reduction can only be used to full capacity if the applied forming processes permit an optimum utilization of the available forming limits. Therefore, the major objective of this work consists in the development of a process sequence of deep drawing and a subsequent hydroforming operation. First a fundamental characterisation of the employed semi-finished products, laser beam welded tailored blanks and patchwork blanks, was performed. Based on sheet metal components with an increasing complexity, it is shown that the developed process sequence, allows to open up synergetic effects form both process stages for the extension of the forming limits of tailored products.