小型ダイカスト設備のための局部加圧条件の最適化

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タイトル別名
  • Optimization of Local Pressurization Conditions for Compact Die Casting System
  • コガタ ダイカスト セツビ ノ タメ ノ キョクブ カアツ ジョウケン ノ サイテキカ

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抄録

<p>  In compact die casting systems with servo and hydraulic mechanism, local pressurization technology is applied to prevent internal shrinkage, instead of decreasing the injection pressure. Local pressurization die casting is effective for reducing the internal shrinkage, but excessive local pressure shortens die lifetime because it causes cracks in the die. Therefore, it is important to determine the optimum local pressurization conditions of the die casting machine. In this paper, in order to discuss the relationship between local pressurization conditions and the internal shrinkage, we attempted to distinguish the internal shrinkage from gas holes by sphericity in Micro X-ray CT (computerized tomography) images. In addition, minimum local pressure conditions from the difference between the solidification shrinkage volume and the local pressurization volume obtained by CAE is reported.</p>

収録刊行物

  • 鋳造工学

    鋳造工学 89 (12), 744-749, 2017

    公益社団法人 日本鋳造工学会

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