摩擦撹拌点接合によるアルミニウム合金板と鋼板の異種金属接合

DOI Web Site 被引用文献27件 参考文献30件

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タイトル別名
  • Dissimilar joining of aluminum alloy and steel sheets by friction stir spot welding
  • マサツ カクハンテン セツゴウ ニ ヨル アルミニウム ゴウキンバン ト コウハン ノ イシュ キンゾク セツゴウ

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抄録

Friction stir spot welding (FSSW) was applied to dissimilar lap joint between aluminum alloy sheet and mild steel sheet without formation of brittle intermetallic compound at the weld interface. A sufficient strength of the dissimilar joint was obtained by stirring aluminum alloy near the interface without inserting a welding tool to steel surface from the aluminum alloy side. Consequently, joint strength of FSSW was higher than that of resistance spot welds, and the all of FSSW joints showed a plug fracture through aluminum alloy parent sheet. Moreover, it was suggested that joint strength was related to area of stir zone at the weld interface. An oxide film was observed partially in the stir zone by sweeping up from the interface. No brittle intermetallic compound was observed at the weld interface. But only the thin amorphous layer of several nm in thickness including oxygen was found at the weld interface.

収録刊行物

  • 軽金属

    軽金属 56 (6), 317-322, 2006

    一般社団法人 軽金属学会

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