NUMERICAL MODELS FOR PREDICTING SPRING-BACK OF STAMPED TITANIUM ALLOY

1 KOREČEK David
Co-authors:
2 SOLFRONK Pavel
Institutions:
1 TUL - Technical University of Liberec, Liberec, Czech Republic, EU, david.korecek@tul.cz
2 TUL - Technical University of Liberec, Liberec, Czech Republic, EU, pavel.solfronk@tul.cz
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
452-458
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
25 views / 8 downloads
Abstract

The paper is focused on the definition of a suitable material model of the titanium alloy, which is subsequent used for the numerical simulation of drawing process and the material spring-back by the FEM. Simulation of drawing process and subsequent spring-back was done in the environment of the simulation software PAM-STAMP 2G. In this simulation were used material models as Hill 48 and Vegter. These material models were defined in a version with isotropic and kinematic (Yoshida model) hardening of material. For a definition of these models, there was necessary to know the individual characteristics of material. Needed material characteristics were determined by the selected material tests. Results obtained by numerical simulations were compared with the results that have been measured by the real experiment of own stamping production.

Keywords: Drawing, Spring-back of Materials, Numerical Simulation, Isotropic and Kinematic Hardening Material Model
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