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Characterization of high strength Al-Zn-Mg alloy sheet for hot stamping

Materials Science Forum, ISSN: 1662-9752, Vol: 794-796, Page: 796-801
2014
  • 9
    Citations
  • 0
    Usage
  • 7
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    9
    • Citation Indexes
      8
    • Patent Family Citations
      1
      • Patent Families
        1
  • Captures
    7

Conference Paper Description

High formability is required to stamp aluminium into complex structural automotive components such as the A-pillar and B-pillar. Formability of an Al-Zn-Mg (AA7xxx) alloy sheet is characterized through hot stamping a prototype part and simulating paint baking procedures. The precipitation behavior is assessed by differential scanning calorimetry and the tensile properties measured between 350°C and 475°C over a range of strain rates from 0.01s to 1s. Natural ageing was found to increase the hardness of the hot stamped parts due to the formation of GP zone precipitates. A simulated three step paint baking procedure produced η' precipitates and resulted in a yield strength and ultimate tensile strength of 480MPa and 512MPa, respectively. © (2014) Trans Tech Publications, Switzerland.

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