Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Material Characterization and Process Control of Double-Sheet Hydroforming of Magnesium Alloys

Datum: 31.08.2007



  • Prof. Dr.-Ing. Dr.-Ing. E.h. mult. Dr. h.c. mult. M. Geiger
  • Prof. Dr.-Ing. habil. K. Steinhoff, Universität Kassel

Todays available magnesium sheets pave the way for implementing ultra-lightweight sheet metal parts, manufactured by sheet metal forming processes. For the design of eligible processes, investigations on the plasticity with specific regard to the impact of temperature and strain rate, the forming limit curve, as well as tribological conditions concerning the interaction between sheet and tool surface or between adjoining sheets in the case of a double sheet hydroforming process, served to create a profound data basis. With respect to the characteristic circumstances of small batch production lines, a heated tool for a double-sheet hydroforming process was built. A clam-shell similar part of complex shape was manufactured and the achieved quality of the parts with regard to the accuracy was analyzed.