Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Hydroforming with local work piece heating by laser radiation

Project Status: finished


Hydroforming of tubes or sheets comprises forming of the half finished goods into a tool cav-ity using a pressurized fluid. This process leads to evenly high straining of the material and resulting work hardening. For the forming of small geometrical features, however, high inner pressure is needed leading to high loading on tool and press. Local heating of the workpiece by laser irradiation can lead to a lower flow stress resulting in lower necessary pressure. Additionally the material may sustain higher strains leading to better form filling.



    • Degner, J.; Herrmann, J.; Junker, F.; Berendt, E.; Merklein, M.:
      Leichtbauwerkstoffe für den modernen Automobilbau.
      Zeitschrift Konstruktion 3(2018), pp. 50-54

    Letztes Update: 01.01.2010