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MENG Lichun1, SUN Xiaohong1, LIU Xuesong2. Formation and mechanical properties of friction stir diffusion bonding joints with 2024-T4 aluminum alloy by convex-vortex pins[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(3): 67-70. DOI: 10.12073/j.hjxb.2018390070
Citation: MENG Lichun1, SUN Xiaohong1, LIU Xuesong2. Formation and mechanical properties of friction stir diffusion bonding joints with 2024-T4 aluminum alloy by convex-vortex pins[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(3): 67-70. DOI: 10.12073/j.hjxb.2018390070
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Formation and mechanical properties of friction stir diffusion bonding joints with 2024-T4 aluminum alloy by convex-vortex pins

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  • Received Date: September 24, 2017
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    • Abstract
  • Convex-vortex pin was firstly proposed and adopted to join the 2024-T4 aluminum alloy by friction stir diffusion welding. The effect of different stir pins on the cross-section appearance, material flow behavior and mechanical properties was investigated. The results showed that no obvious bending generated in the lap interface under the influence of convex-vortex pins. With the increment of the convex-vortex pins, the width of bottom of nugget zone also increased. The lap joint obtained by four convex-vortex pins presented a higher effective lap width and fracture loads than that of the lap joint obtained by six convex-vortex pins. And the corresponding values were 11.74 mm and 17 531.83 N, respectively.
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