摩擦攪拌インクリメンタルフォーミングおよびインクリメンタルハンマリングの組合わせによる発泡アルミニウムの表面緻密層の増厚と圧縮強度  [in Japanese] Thickness increase of skin layer on aluminum foam surface and compressive strength by combination of friction stir incremental forming and incremental hammering  [in Japanese]

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Author(s)

    • 松本 良 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
    • 森 成秀 Mori Seishu
    • 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
    • 大津 雅亮 Otsu Masaaki
    • 福井大学大学院工学研究科機械工学専攻 Department of Mechanical Engineering, Faculty of Engineering, University of Fukui
    • 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

<p>To improve mechanical properties of porous metals, formation of skin layer on the surface of porous metals is effective. Friction stir incremental forming (FSIF) and incremental hammering (IH) processes were combined to form skin surface layer on a closed-cell type aluminum foam without causing the inside fracture. The cell walls at the surface of the aluminum foam were folded by IH process in the early stage of the process, and then the folded cell walls were stirred and joined by FSIF process. The friction stirred surface layer formed by the combination of IH and FSIF processes was approximately 1.6–4.0 times thicker than that formed by FSIF process. The specific compressive strength of the aluminum foam with the friction stirred surface layer was 1.2–1.6 times higher than that without the friction stirred surface layer due to the formation of the sandwich structure. Influence of the thickness and structure of the skin surface layer on the compressive strength of the aluminum foam with the skin surface layer was discussed.</p>

Journal

  • Journal of Japan Institute of Light Metals

    Journal of Japan Institute of Light Metals 66(8), 419-425, 2016

    The Japan Institute of Light Metals

Codes

  • NII Article ID (NAID)
    130005264935
  • NII NACSIS-CAT ID (NCID)
    AN00069773
  • Text Lang
    JPN
  • ISSN
    0451-5994
  • NDL Article ID
    027555032
  • NDL Call No.
    Z17-284
  • Data Source
    NDL  J-STAGE 
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