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Indentation Joining Process with Bar Oscillation on Servo-controlled Press

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Other Title
  • サーボプレスを用いた振動付加植込み接合
  • サーボプレス オ モチイタ シンドウ フカ ウエコミ セツゴウ フランジ ツキジク ブヒン ノ ウエコミ セツゴウホウ ノ カイハツ ダイ3ポウ
  • サーボプレスを用いた振動付加植込み接合 : フランジ付軸部品の植込み接合法の開発 第3報
  • サーボプレスを用いた振動付加植込み接合:— フランジ付軸部品の植込み接合法の開発 第3報 —
  • — Development of Plastic Joining Method Using Indentation III —
  • — フランジ付軸部品の植込み接合法の開発 第3報 —

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A plastic joining method for fixing bars with a hot-forged plate was proposed in previous papers. In this method, a cold bar is directly indented into a hot plate to pierce the plate without lubrication on a press and then fixed to the plate after piercing. In this study, to improve the bonding strength of a bar-plate, the indented bar was oscillated at amplitudes of 0.2 - 2.0 mm immediately after bar indentation into the plate on an AC servo-controlled press. The effect of bar oscillation on the bonding strength of the bar-plate was examined using an A6061 aluminum bar and an A6061 aluminum plate. The obtained shear bonding stress of the bar-plate in the indentation joining with bar oscillation of 0.2 mm of amplitude was approximately 1.5 times higher than that in the indentation joining without bar oscillation at an indentation temperature of 500 °C. The bonding mechanism of the indentation joining with bar oscillation was discussed from the viewpoints of bar-plate seizure and mechanical clamping associated with the method.


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