FE-Simulation of Hot Forging with an Integrated Heat Treatment with the Objective of Residual Stress Prediction

authored by: Bernd Arno Behrens, Anna Chugreeva, Alexander Chugreev
Abstract: Hot forming as a coupled thermo-mechanical process comprises numerous material phenomena with a corresponding impact on the material behavior during and after the forming process as well as on the final component performance. In this context, a realistic FE-simulation requires reliable mathematical models as well as detailed thermo-mechanical material data. This paper presents experimental and numerical results focused on the FE-based simulation of a hot forging process with a subsequent heat treatment step aiming at the prediction of the final mechanical properties and residual stress state in the forged component made of low alloy CrMo-steel DIN 42CrMo4. For this purpose, hot forging experiments of connecting rod geometry with a corresponding metallographic analysis and x-ray residual stress measurements have been carried out. For the coupled thermo-mechanical-metallurgical FE-simulations, a special user-defined material model based on the additive strain decomposition method and implemented in Simufact Forming via MSC.Marc solver features has been used.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Conference contribution
Publication date: 03.05.2018
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Physics and Astronomy
Electronic version(s): https://doi.org/10.1063/1.5034857 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{7f03334dcc754a588fa0c20a3c5c5426,
title = "FE-Simulation of Hot Forging with an Integrated Heat Treatment with the Objective of Residual Stress Prediction",
abstract = "Hot forming as a coupled thermo-mechanical process comprises numerous material phenomena with a corresponding impact on the material behavior during and after the forming process as well as on the final component performance. In this context, a realistic FE-simulation requires reliable mathematical models as well as detailed thermo-mechanical material data. This paper presents experimental and numerical results focused on the FE-based simulation of a hot forging process with a subsequent heat treatment step aiming at the prediction of the final mechanical properties and residual stress state in the forged component made of low alloy CrMo-steel DIN 42CrMo4. For this purpose, hot forging experiments of connecting rod geometry with a corresponding metallographic analysis and x-ray residual stress measurements have been carried out. For the coupled thermo-mechanical-metallurgical FE-simulations, a special user-defined material model based on the additive strain decomposition method and implemented in Simufact Forming via MSC.Marc solver features has been used.",
author = "Behrens, {Bernd Arno} and Anna Chugreeva and Alexander Chugreev",
note = "Funding information: The authors wish to express sincere thanks to the German Research Foundation (DFG) for financially supporting the research project BE1691/142-1 “Simulation of the undesired distortions in hot forged and subsequently heat treated components considering the impact of unsteady stress state on the transformation plasticity”. Moreover, the authors would like to acknowledge Mrs. Niemeyer for many helpful suggestions regarding the metallographic investigations.; 21st International ESAFORM Conference on Material Forming, ESAFORM 2018 ; Conference date: 23-04-2018 Through 25-04-2018",
year = "2018",
month = may,
day = "3",
doi = "10.1063/1.5034857",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "Gianluca Buffa and Livan Fratini and Giuseppe Ingarao and {Di Lorenzo}, Rosa",
booktitle = "Proceedings of the 21st International ESAFORM Conference on Material Forming, ESAFORM 2018",
address = "United States",
}