Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Load recording for validation of FE-models used for design of cold forging tools.



Datum: 16.09.2014


Author


Reporter

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

The scope of this thesis was the development of a methodology to enhance the validation of FE-models. Achieving this, the load prediction of the FE-models used for tool design is improved significantly. Thus highly loadable tools can be designed utilizing FE-models. This is fundamental for cold forging of high strain hardening materials like high nitrogen steels. Using this group of materials components with high strength and extended range of use can be manufactured without the need of quenching and tempering. Hence negative implications, like worsening of surface quality and dimensional accuracy, completely can be avoided. Also the process chain can be shortened considerably. Additionally within the thesis it is shown that components made out of high nitrogen steel offer a much higher strength then components manufactured out of common steels. Device made out of common steels additionally have to be quenched and tempered.