Numerical Investigations on Stresses and Temperature Development of Tool Dies During Hot Forging

authored by: Bernd Arno Behrens, Daniel Rosenbusch, Hendrik Wester, Janina Siring
Abstract: Hot-forming tools are subjected to high thermal and mechanical stresses during their application. Therefore, a suitable design of the tool die is important to ensure a long tool life. For this purpose, numerical simulations can be used to calculate the occurring stresses and the temperature development in the tools during the course of a stroke or over several forging cycles. The aim of this research is to investigate the effect of different radii on the resulting stresses in the lower die of the forming tools. Furthermore, the temperature evolution over several cycles is analysed to determine their effect on the temperature. When investigating the stress, it was found that a larger radius leads to a reduction in stresses. In addition, it could be numerically proven that the base temperature of the die levels off after a certain number of cycles. These findings will be used in further research dealing with the service life calculation of dies subjected to thermo-mechanical alternating stresses.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Conference contribution
Pages: 559-568
No. of pages: 10
Publication date: 2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Materials Science(all), Mechanics of Materials, Mechanical Engineering
Electronic version(s): https://doi.org/10.4028/p-sf68jl (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{ea741d5bf3504156b97126b59cbb4e5e,
title = "Numerical Investigations on Stresses and Temperature Development of Tool Dies During Hot Forging",
abstract = "Hot-forming tools are subjected to high thermal and mechanical stresses during their application. Therefore, a suitable design of the tool die is important to ensure a long tool life. For this purpose, numerical simulations can be used to calculate the occurring stresses and the temperature development in the tools during the course of a stroke or over several forging cycles. The aim of this research is to investigate the effect of different radii on the resulting stresses in the lower die of the forming tools. Furthermore, the temperature evolution over several cycles is analysed to determine their effect on the temperature. When investigating the stress, it was found that a larger radius leads to a reduction in stresses. In addition, it could be numerically proven that the base temperature of the die levels off after a certain number of cycles. These findings will be used in further research dealing with the service life calculation of dies subjected to thermo-mechanical alternating stresses.",
keywords = "1.2367, hot forging, numerical investigation, temperature development, thermo-mechanical analyses",
author = "Behrens, {Bernd Arno} and Daniel Rosenbusch and Hendrik Wester and Janina Siring",
note = "Funding Information: The results presented were obtained in the research project “Development of a methodology for evaluating the fatigue life of highly loaded hot forming tools based on advanced material models” financed under project number 244928365 by the German Research Foundation (DFG). The authors would like to thank the German Research Foundation for the financial support. ; 25th International Conference on Material Forming, ESAFORM 2022 ; Conference date: 27-04-2022 Through 29-04-2022",
year = "2022",
doi = "10.4028/p-sf68jl",
language = "English",
isbn = "9783035717594",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "559--568",
editor = "Gabriela Vincze and Fr{\'e}d{\'e}ric Barlat",
booktitle = "Achievements and Trends in Material Forming",
}