Affiliations: [a] Institute of Applied Materials – WK, Karlsruhe
Institute of Technology, Karlsruhe, Germany | Leibniz University of Hannover, Hannover, Germany | University of Pavia, Pavia, Italy | University of Padua, Padua, Italy
Correspondence:
[*]
Corresponding author: M. Schwenk, Institute of Applied Materials
– WK, Karlsruhe Institute of Technology, Engelbert-Arnold-Str. 4, 76131
Karlsruhe, Germany. Tel.: +49 0721 608 42705; Fax: +49 0721 608 48044; E-mail:
maximilian.schwenk@kit.edu
Abstract: Dual frequency induction hardening can be a low distortion
alternative to case hardening for gearings. However, profound process
understanding is still lacking, which is reflected by the absence of
appropriate models allowing the prediction of final component properties in
terms of residual stresses and distortion. In order to close this gap, a 2-D
numerical model has been developed, considering short time austenitization
kinetics of quenched and tempered AISI 4140. The induction heating model
considering the nonlinear magnetic material behaviour is realized with
MSC.Marc®, whereas the mechanical response is implemented in
Abaqus/Standard®. The comparison of residual stresses and distortion with experimental results shows that the
developed model is in good agreement. Numerical investigations have shown that
the core temperature and the TRIP strain during the martensitic transformation
will determine the quantitative distribution of the residual stresses.
Keywords: Numerical simulation, induction hardening, material modeling
