熱間しごきスピニング加工による<br>アルミニウム合金鋳物の鋳造欠陥の低減

DOI Web Site 被引用文献4件 参考文献11件

書誌事項

タイトル別名
  • Decrease in Casting Defects in Cast Aluminum Alloys by Hot<br>Shear Spinning
  • ネツカン シゴキ スピニング カコウ ニ ヨル アルミニウム ゴウキン イモノ ノ チュウゾウ ケッカン ノ テイゲン

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抄録

he effect of hot shear spinning on the elimination of casting defects such as shrinkage cavities and dendrites in cast aluminum alloys was examined. Hot shear spinning is effective for achieving a large plastic deformation under a comparatively low forming load. Although many casting defects were formed in the cast blank, the shrinkage cavities and dendrites were successfully eliminated at an ironing ratio of above 20 %. The tensile strength and elongation of the formed parts were improved by eliminating the casting defects by hot shear spinning. The shear spinning process was simulated by the three-dimensional finite element method, and the casting defects were eliminated above an equivalent plastic strain of 1. It was found that hot shear spinning is effective for improving the mechanical properties of cast aluminum alloy parts.

収録刊行物

  • 塑性と加工

    塑性と加工 49 (573), 0990-0994, 2008

    一般社団法人 日本塑性加工学会

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