アルミニウム合金溶湯による複合材料の超音波鋳造接合

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タイトル別名
  • Ultrasonic Cast Joining of Aluminum Matrix Composites Performed by Molten Aluminum Alloy
  • アルミニウム ゴウキン ヨウトウ ニ ヨル フクゴウ ザイリョウ ノ チョウオンパ チュウゾウ セツゴウ

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抄録

  This paper presents a novel cast joining method of aluminum matrix composite (AMC) made by molten aluminum alloy to aim at manufacturing of partially reinforced components. Ultrasonic vibration was applied to resolve the main difficulties of the process such as an oxide film formed on the molten aluminum surface and pores appeared adjacent to the solidified interface, which prevent the joining pair from its soundness. In order to eliminate an oxide film and pores at the interface during the process, the application of ultrasonic vibration is required until the full remelting of the initially solidified aluminum alloy region due to the direct contact of the AMC. Ultrasonic vibration makes not only to accelerate the remelting, but also to disappear the thermal contact resistance between the joined portion. Resultantly, sound interface with high strength is achieved. The effects of the vibrational amplitude and cooling rate during the process on the soundness of cast joining are also discussed.

収録刊行物

  • 鋳造工学

    鋳造工学 71 (10), 691-696, 1999

    公益社団法人 日本鋳造工学会

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