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Experimental Study on the Mechanical Property and Forming Limit of Magnesium Sheet at Elevated Temperatures

[+] Author Affiliations
Y. Huang, J. Cao

Northwestern University, Evanston, IL

J. Huang

Wuhan University of Technology, Wuhan, China

Paper No. MSEC2009-84383, pp. 651-659; 9 pages
doi:10.1115/MSEC2009-84383
From:
  • ASME 2009 International Manufacturing Science and Engineering Conference
  • ASME 2009 International Manufacturing Science and Engineering Conference, Volume 1
  • West Lafayette, Indiana, USA, October 4–7, 2009
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4361-1 | eISBN: 978-0-7918-3859-4
  • Copyright © 2009 by ASME

abstract

Magnesium alloy sheet has received increasing attention in automotive and aerospace industries. It is widely recognized that magnesium sheet has a poor formability at room temperature. While at elevated temperature, its formability can be dramatically improved. Most of work in the field has been working with the magnesium sheet after annealed around 350°C. In this paper, the as-received commercial magnesium sheet (AZ31B-H24) with thickness of 2mm has been experimentally studied without any special heat treatment. Uniaxial tensile tests at room temperature and elevated temperature were first conducted to have a better understanding of the material properties of magnesium sheet (AZ31B-H24). Then, limit dome height (LDH) tests were conducted to capture forming limits of magnesium sheet (AZ31B-H24) at elevated temperatures. An optical method has been introduced to obtain the stress-strain curve at elevated temperatures. Experimental results of the LDH tests were presented.

Copyright © 2009 by ASME

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