SiC粒子強化2124アルミニウム合金複合材料の高速超塑性バルジ成形 High strain rate superplastic bulge forming of SiC particle reinforced 2124 aluminum alloy composite

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High strain rate superplastic bulge forming of aluminum alloy matrix composite sheets reinforced by SiC particles was studied and compared to their deformation characteristics in a tensile test. Bulge forming test was performed at elevated temperatures using 36 mm diameter blank disks by gas pressure. The bulge shapes were successfully formed at high strain rate (about 0.1/s) at which superplasticity is observed in the tensile test. The superplastic formability of the composite with 25% volume fraction of SiC particles is better than that with 17% SiC, corresponding to the measured elongation in the tensile test. The limit bulge height of the sheet with the same SiC volume fraction is increased with increasing initial thickness. The higher forming gas pressure, namely the higher forming rate, lead to the uniform thickness distributions of the bulged part. The maximum thickness strain at the top of the bulge and the applied stress calculated from the forming gas pressure in bulge forming can be concerned with the elongation and the flow stress in the tensile test.

収録刊行物

  • 軽金属  

    軽金属 48(8), 380-384, 1998-08 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002665056
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4652048
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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