Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Manufacturing of process adapted semi-finished products with variable sheet thickness by the application of sheet-bulk metal forming

Datum: 17.07.2013



  • Prof. Dr.-Ing. habil. M. Merklein
  • Prof. Dr.-Ing. A. Brosius

The central objective of this work was to manufacture process adapted semi-finished products with variable sheet thickness by sheet-bulk metal forming operations. This process class describes the application of conventional bulk metal forming processes on sheet metal products. Due to the spatial deformation of plane semi-finished products, simultaneously acting triaxial stress and strain states result. The challenges mainly concern the occurrence of high process forces and the specific control of the material flow. During the investigations, the processes upsetting, orbital forming and
rolling were used, which distinguish between the acting contact conditions and the resultant process forces as well as the ability to actively influence the material flow. Within this work, the influence of various process parameters had to be investigated to generate a fundamental process knowledge for the manufacturing of sheet metal blanks with a defined thickness characteristic considering each process characteristic.