銅合金の押出し加工におけるビレット表層流れの FEM 解析

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タイトル別名
  • FEM Analysis of Billet Surface Flow on Extrusion of Copper Alloy
  • ドウ ゴウキン ノ オシダシ カコウ ニ オケル ビレット ヒョウソウ ナガレ ノ FEM カイセキ

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<tt>The flow of a billet surface inserted into the profile during the extrusion of Cu alloy has been investigated by the finite element method under several extrusion conditions. The billet surface material is inserted into the profile in two ways. We have defined the forward flow into the profile surface as Flow type 1, and the flow into the inner parts of the profile as Flow type 2. These lengths of insertion into the profile have been estimated. In the initial billet temperature range of 500-800℃, the higher the temperature, the larger is the insertion length of Flow type 1, and the shorter that of Flow type 2. The insertion length of Flow type 1 increases because the deformation resistance of the billet surface increases when the initial billet temperature is higher than the container temperature. For extrusion ratios of 11-42, the higher the extrusion ratio, the larger is the insertion length of Flow type 1, and the shorter that of Flow type 2. The insertion length of Flow type 1 decreases because the length between the billet surface and the profile is large when the extrusion ratio is</tt><tt> high. </tt>

収録刊行物

  • 塑性と加工

    塑性と加工 54 (624), 52-56, 2013

    一般社団法人 日本塑性加工学会

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