Testing formability in the hot stamping of HSS

This paper presents an innovative experimental procedure, based on Nakazima test, for evaluating the formability limits in the hot stamping of high strength steel (HSS) which is capable of generating formability data suitable for an FE modelling of the process. The approach is based on two complemen...

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Bibliographic Details
Published in:CIRP annals 2008, Vol.57 (1), p.265-268
Main Authors: Bariani, P.F., Bruschi, S., Ghiotti, A., Turetta, A.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Formability
Forming
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Hot deformation
Metals. Metallurgy
Other forming methods
Phase transformation
Physics
Production techniques
Sheet metal
Solid mechanics
Structural and continuum mechanics
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Summary:This paper presents an innovative experimental procedure, based on Nakazima test, for evaluating the formability limits in the hot stamping of high strength steel (HSS) which is capable of generating formability data suitable for an FE modelling of the process. The approach is based on two complementary tests which are aimed at evaluating the actual phase transformation kinetics for the material under deformation conditions and the combinations of microstructure, temperature and straining path that lead to localized necking or fracture.
ISSN:0007-8506
DOI:10.1016/j.cirp.2008.03.049