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首页> 外文期刊>Aerospace science and technology >Fatigue assessment of AA 8090 friction stir butt welds after surface finishing treatment
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Fatigue assessment of AA 8090 friction stir butt welds after surface finishing treatment

机译：表面处理后AA 8090搅拌摩擦对接焊缝的疲劳评估

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摘要

Combining great performances with high standards of safety and efficiency is the challenge for most aircraft manufacturers. Aircraft are subjected to extraordinary loads, repeated for millions of cycles also in extreme environmental conditions, hence every component must be designed and manufactured to maximize its fatigue resistance. Friction Stir Welding of aluminium alloys and surface finishing process as might be a good solution to reach this goal. The high performances reached in this field with the use of this technique could be further increased reducing the welded surface irregularity, which might promote the development of a dangerous fatigue failure mechanism. In this work, the effect of the welded surface finishing treatment on the fatigue behavior of AA8090 FSW butt joints was assessed. The results obtained from the dynamic tests highlighted the higher fatigue resistance of finished specimens, with respect to the as-welded joints.
机译：对于大多数飞机制造商而言，将出色的性能与高标准的安全性和效率相结合是挑战。飞机承受着巨大的载荷，即使在极端的环境条件下也要重复数百万次循环，因此必须设计和制造每个组件，以使其疲劳强度最大化。铝合金的搅拌摩擦焊和表面抛光工艺可能是实现此目标的一个很好的解决方案。使用该技术可以进一步提高该领域的高性能，从而减少焊接表面的不规则性，这可能会促进危险的疲劳失效机制的发展。在这项工作中，评估了焊接表面精加工处理对AA8090 FSW对接接头疲劳行为的影响。从动态测试获得的结果表明，相对于焊接接头，成品试样具有更高的抗疲劳性。

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  • 来源
    《Aerospace science and technology》 |2013年第1期|188-192|共5页
  • 作者

    M. Pedemonte; C. Gambaro; E. Lertora; C. Mandolfino;

  • 作者单位

    University of Genoa, Department of Production Engineering, Thermoenergetic and Mathematical Models, Genoa, Italy;

    University of Genoa, Department of Production Engineering, Thermoenergetic and Mathematical Models, Genoa, Italy;

    University of Genoa, Department of Production Engineering, Thermoenergetic and Mathematical Models, Genoa, Italy;

    University of Genoa, Department of Production Engineering, Thermoenergetic and Mathematical Models, Genoa, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Friction Stir Welding; AA8090; Fatigue; Surface finishing;

    机译：搅拌摩擦焊;AA8090;疲劳;表面处理;

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