Al–Mg合金板のプレス成形解析のための変形抵抗式の測定  [in Japanese] Determination of flow stress equation of Al–Mg alloy for sheet metal forming analysis  [in Japanese]

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Author(s)

    • 風岡 徹 Kazaoka Toru
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 大学院生 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 名取 恵子 Natori Keiko
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 松本 良 [他] Matsumoto Ryo
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 宇都宮 裕 Utsunomiya Hiroshi
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

Abstract

In order to improve the accuracy of forming analysis for aluminum alloys, it is important to determine precise flow stress equation for aluminum alloys. In case of 5000 series aluminum alloys, formability is difficult to predict due to non-uniform deformation such as dynamic strain aging and stretcher-strain. To identify flow stress curve of A5182-O for wider strain range, the methods using rolling-tensile test and Vickers hardness test was investigated and compared with conventional regression curve obtained by uniaxial tensile test. The three methods were assessed in prediction of neck formation. It is found that stress-strain relationship without dynamic strain aging effect is required for precise prediction of uniform elongation. Plastic instability condition was predicted more precisely by either rolling-tensile test or Vickers hardness test than by conventional tensile test.

Journal

  • Journal of Japan Institute of Light Metals

    Journal of Japan Institute of Light Metals 65(11), 568-572, 2015

    The Japan Institute of Light Metals

Codes

  • NII Article ID (NAID)
    130005115293
  • NII NACSIS-CAT ID (NCID)
    AN00069773
  • Text Lang
    JPN
  • ISSN
    0451-5994
  • NDL Article ID
    026913553
  • NDL Call No.
    Z17-284
  • Data Source
    NDL  J-STAGE 
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