特異点探索法によるダイカストの鋳造欠陥発生予測

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  • Prediction of Defects in Die Casting by Critical Point Searching Method
  • トクイテン タンサクホウ ニヨル ダイカスト ノ チュウゾウ ケッカン ハッセ

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  For the prediction of air-entrapment in aluminum die castings, we proposed the Critical Point Searching Method (CPM) : a technique for searching for points where the velocity vector is zero. The positions of the critical points can be found by searching all cells in the flow field. The flow field was calculated using a casting flow simulator Stefan 3D, developed by Tohoku University. The tetrahedral-cell based approach was used to calculate steadily and efficiently. Three examples of fluid flow simulation were conducted. Close relations were found between the simulated results and the results of X-ray penetration examinations and CT pictures of castings.

収録刊行物

  • 鋳造工学

    鋳造工学 69 (4), 323-328, 1997

    公益社団法人 日本鋳造工学会

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