Rev. Met. Paris
Volume 96, Number 1, Mars 1999
|Page(s)||121 - 132|
|Published online||16 January 2017|
Press forming of high strength steels and their use for safety parts*
Mise en forme des aciers à très haute résistance et leur utilisation pour pièces de sécurité
The requirements in the automotive industry cause an evolution towards very high mechanical property steels. The formability of dual phase steels (450 to 750 MPa tensile strength level) in comparison to microalloyed steels is studied by means of some laboratory tests (hole expansion, etc.) and press forming of some representative automotive parts (side door impact beam, etc.).
A comparison of spring back due to their use is also conducted. The results show that these steels, answering to weight reduction and crash safety objectives, offer good forming potentials despite their very high tensile strength.
© La Revue de Métallurgie 1999
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