アルミニウム合金板の溶接変形低減法に関する検討

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タイトル別名
  • Reduction of Welding Deformation for Fillet Welding of Aluminum Plate
  • アルミニウム ゴウキンバン ノ ヨウセツ ヘンケイ テイゲンポウ ニ カンスル ケントウ

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<p>Aluminium welding processes are often used in marine and offshore industries especially for floating LNG <tt>(</tt>Liquefied Natural Gas<tt>) </tt>production, storage and LNG fuelled vessels. Welding deformations of aluminium plates are desired to reduce since it is larger than that of steel. Finite element models of MIG <tt>(</tt>Metal Inert Gas<tt>) </tt>welding and TIG <tt>(</tt>Tungsten Inert Gas<tt>) </tt>heating on aluminium plates by using the commercial finite element code Abaqus were developed in this study. A mixed material hardening model was employed in order to simulate aluminium material behaviours. A reduction method by in-process additional heating of plate bottom side was proposed and heating conditions were investigated by using the developed numerical models. Simulations and experiments of in-process additional heating of plate bottom side were carried out. The proposed method achieved a significant reduction of deformations for aluminium fillet welding.</p>

収録刊行物

  • 軽金属溶接

    軽金属溶接 58 (10), 31-37, 2020-10-16

    一般社団法人 軽金属溶接協会

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