Temperature and processability of magnesium alloy AZ31 on rectangular cup deep drawing

Yasuhide Nakayama, Tetsuo Naka, Takeshi Uemori, Ichiro Shimizu

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

1 Citation (Scopus)

Abstract

The magnesium alloys, that have high specific strength, are often applied to the industrial products. However, the magnesium alloys exhibit low ductility at the room temperature on account of its hexagonal close-packed structure. It is difficult to give large deformation to the magnesium alloys at room temperature. Therefore, the plastic forming of a magnesium alloy sheet needs the process at warm temperature. In the present work, the procedure of thermal-mechanical coupled analyses are employed. The numerical simulations of warm deep drawings have been performed in order to evaluate the dependence of the temperature on the plastic forming of a magnesium alloy AZ31 sheet. The mechanical properties of the magnesium alloy AZ31 shall be described as the functions depending on temperature. The shapes of punches and die holes are rectangle whose aspect ratios are 1.5 or 2.0. The corners of punches and dies are heated locally at 473K. The influence of local heating on the formability have been investigated. The relation between the blank size and the formability has been also estimated. As the results of numerical simulations, it was shown that the formability of deep drawing was improved by local heating to the punch and the die. When the blanks of various sizes were tried, the distributions of the plastic strain rate around the die corner were changed. Therefore, the deviation of the plastic flow and the temperature distribution arose in a sheet. Consequently, it is necessary to optimize the blank sizes according to the shape of die holes in addition to the forming temperature.

Original languageEnglish
Title of host publicationAdvances in Engineering Plasticity XI
PublisherTrans Tech Publications Ltd
Pages326-329
Number of pages4
ISBN (Print)9783037855485
DOIs
Publication statusPublished - Jan 1 2013
Event11th Asia-Pacific Conference on Engineering Plasticity and Its Applications, AEPA 2012 - Singapore, Singapore
Duration: Dec 5 2012Dec 7 2012

Publication series

NameKey Engineering Materials
Volume535-536
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other11th Asia-Pacific Conference on Engineering Plasticity and Its Applications, AEPA 2012
CountrySingapore
CitySingapore
Period12/5/1212/7/12

Keywords

  • Deep drawing
  • Finite element method
  • Magnesium alloy
  • Plastic forming

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Temperature and processability of magnesium alloy AZ31 on rectangular cup deep drawing'. Together they form a unique fingerprint.

  • Cite this

    Nakayama, Y., Naka, T., Uemori, T., & Shimizu, I. (2013). Temperature and processability of magnesium alloy AZ31 on rectangular cup deep drawing. In Advances in Engineering Plasticity XI (pp. 326-329). (Key Engineering Materials; Vol. 535-536). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.535-536.326