Study of Formable High Strength Steel Sheets for Automotive Panels

Paper #:
  • 920247

Published:
  • 1992-02-01
Citation:
Katayama, T., Takahashi, M., Usuda, M., and Akisue, O., "Study of Formable High Strength Steel Sheets for Automotive Panels," SAE Technical Paper 920247, 1992, https://doi.org/10.4271/920247.
Pages:
9
Abstract:
Weight reduction of automobiles is one of the most highlighted subjects in automobile industry from the energy saving and clean environment points of view. A typical approach for the purpose is to use high strength steel sheets as well as optimizing designs and using low density materials. It is not, however, easy to apply high strength steel sheets to automotive panels because of their strict requirement for the shape-fixability although a high dent resistance is also required. Besides the use of bake hardening steels, two different high strength steel sheets, which are a continuously annealed extra-low carbon titanium-added IF steel and a low carbon TRIP steel which contains about six volume% of austenite, were assessed for the application to automotive panels in combination with a tension-controled press-forming technique and showed as good shape-fixability as a conventional box-annealed aluminum-killed DDQ steel sheet when high blank-holding-forces were applied.
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