Numerical Modelling of Transformation-Induced Plasticity in Hot Forging Simulations

authored by: N. Mohnfeld, J. Uhe, H. Wester, C. Kock, B. A. Behrens
Abstract: Hot forming processes involve several interactive material phenomena. This includes transformation-induced plasticity (TRIP), which significantly affects the resulting deformations and residual stresses of the workpieces. The magnitude and orientation of TRIP strains are dependent on stress states that occur during cooling, making it essential to consider TRIP effects in process design. Material parameters required for modelling this were previously recorded and validated through experiments on AISI 52100. In this study, a material model based on this data is used to investigate a forged component by predicting the distortion occurring over the course of die forging, deflashing, and cooling. By comparing simulations with and without TRIP effects, the study demonstrates the potential for resource-efficient design of forging process routes, minimising scrap due to distortion and maximising material savings, up to the limit of a distortion-free component.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Contribution to book/anthology
Pages: 609-618
No. of pages: 10
Publication date: 2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Industrial and Manufacturing Engineering, Economics, Econometrics and Finance (miscellaneous), Safety, Risk, Reliability and Quality
Electronic version(s): https://doi.org/10.1007/978-3-031-47394-4_59 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inbook{e683c3954b4a403cbfe2710e8461c4c7,
title = "Numerical Modelling of Transformation-Induced Plasticity in Hot Forging Simulations",
abstract = "Hot forming processes involve several interactive material phenomena. This includes transformation-induced plasticity (TRIP), which significantly affects the resulting deformations and residual stresses of the workpieces. The magnitude and orientation of TRIP strains are dependent on stress states that occur during cooling, making it essential to consider TRIP effects in process design. Material parameters required for modelling this were previously recorded and validated through experiments on AISI 52100. In this study, a material model based on this data is used to investigate a forged component by predicting the distortion occurring over the course of die forging, deflashing, and cooling. By comparing simulations with and without TRIP effects, the study demonstrates the potential for resource-efficient design of forging process routes, minimising scrap due to distortion and maximising material savings, up to the limit of a distortion-free component.",
keywords = "AISI 52100, FE-simulation, Hot forging, phase transformation, transformation-induced plasticity",
author = "N. Mohnfeld and J. Uhe and H. Wester and C. Kock and Behrens, {B. A.}",
note = "Funding Information: Acknowledgements. This study was funded by the German Research Foundation (DFG, Deutsche Forschungsgemeinschaft) - 212963651 (BE 1691/142–2). The authors gratefully acknowledge the German Research Foundation for their financial support of this project.",
year = "2024",
doi = "10.1007/978-3-031-47394-4_59",
language = "English",
isbn = "978-3-031-47393-7",
series = "Lecture Notes in Production Engineering",
publisher = "Springer Nature",
pages = "609--618",
booktitle = "Lecture Notes in Production Engineering",
address = "United States",
}