Critical review of hot stamping technology for automotive steels

D. W. Fan, Han S. Kim, S. Birosca, B. C. De Cooman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hot stamping is an alternative technology to produce ultra high strength steels for automotive parts that has received much attention recently. In this paper the physical metallurgy principles of the hot stamping process are reviewed. The effect of composition on CCT curves of hot stamping steels is discussed taking deformation during press forming into account. Moreover the thermo-mechanical behavior of press hardenable B-added CMn steel is reviewed in detail. The influence of temperature, cooling rate, strain and strain rate on the flow stress are discussed. The issues related to coatings on B-alloyed CMn hot stamping steel are also critically reviewed. Finally, the properties of both Zn-based and Al-based coating systems are compared, and the possibility of the in situ formation of a diffusion barrier during press forming is discussed.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
Pages98-109
Number of pages12
Volume1
Publication statusPublished - 1 Sep 2007
EventMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems" - Detroit, MI, United States
Duration: 16 Sep 200720 Sep 2007

Publication series

NameMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
Volume1

Conference

ConferenceMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
Country/TerritoryUnited States
CityDetroit, MI
Period16/09/0720/09/07

Keywords

  • Boron steel
  • Hot stamping
  • Martensitic steel
  • Press hardening

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