Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Development of a material-oriented manufacturing process window to enhance the forming limits of aluminum alloys under using an intermediate heat treatment



Datum: 30.06.2015


Author

  • Dr.-Ing. Kathleen Klaus

Reporter

  • Prof. Dr.-Ing. habil. M. Merklein
  • Prof. Dr.-Ing. K. Roll

Aluminum alloys exhibit material-specific forming limits which reduces the use as chassis components with the given requirments. As a part of the work, the new process technology of intermediate heat treatment was introduced and investigated. In detail, its potential for increasing the failure limits e.g. of naturally hardened aluminum alloy AA5182. The main objective here was to develop a basic understanding of temperature-dependent and pre-strain-dependent material and forming properties. The process strategy was evaluated in this work based on two different heating strategies, global furnace and local induction heating, with respect to the series-production conditions of chassis components. From the material results a material-orientated process window has been defined. Furthermore, a method approach was presented to take account of the material properties achieved in industrial FE simulation. The implementation into the production of production-orientated components geometries completes the work.