• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (6): 184-192.doi: 10.3901/JME.2020.06.184

• 搅拌摩擦焊接 • 上一篇    下一篇

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搅拌摩擦焊材料流动的试验表征研究现状

甄云乾, 刘小超, 申志康, 陈海燕   

  1. 西北工业大学陕西省摩擦焊接工程技术重点实验室 西安 710072
  • 收稿日期:2019-08-30 修回日期:2019-11-03 出版日期:2020-03-20 发布日期:2020-05-12
  • 作者简介:甄云乾,男,1994年出生。主要研究方向为搅拌摩擦焊接过程金属塑性流动行为。E-mail:yunqianzhen@163.com;
    刘小超(通信作者),男,1990年出生,博士,副教授,硕士研究生导师。主要研究方向为搅拌摩擦焊工艺机理及与之相关的材料行为。E-mail:xcliu@nwpu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51905437)。

State-of-art of Experimental Characterization of Material Flow in Friction Stir Welding

ZHEN Yunqian, LIU Xiaochao, SHEN Zhikang, CHEN Haiyan   

  1. Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi'an 710072
  • Received:2019-08-30 Revised:2019-11-03 Online:2020-03-20 Published:2020-05-12

摘要: 搅拌摩擦焊作为一种较新的固相连接技术,在航空航天、高速列车、汽车、船舶等机械制造领域中具有广阔的应用前景。充分认识搅拌摩擦焊接过程中的塑性材料流动,对于深刻理解焊缝成形机理、优化焊接工艺具有重要的理论指导意义。综述了当前搅拌摩擦焊塑性材料流动的试验表征技术研究现状,重点分析了采用“点”、“线”、“面”和“体”形标记材料来研究塑性材料流动的优缺点。在此基础上,综述了搅拌摩擦焊缝成形机理的研究现状,探讨了关于材料流动的尚未有效解决的关键科学问题。

关键词: 搅拌摩擦焊, 塑性材料流动, 标记材料, 焊缝成形

Abstract: Friction stir welding (FSW), as a relatively new solid-state welding technique, is a promising technique in the field of aerospace, high-speed train, automobile, shipbuilding and other machinery manufacturing. Fully understanding the plastic flow of the deformed materials in the process of friction stir welding is of importance in theory for deeply understanding the mechanism of the weld formation and optimizing the welding process. The state-of-art of the experimental characterization of the material flow in friction stir welding is summarized, and the advantages and disadvantages of using dots, lines, planes and solids as marker materials to study the material flow are emphatically analysed. Further, the research status of friction stir weld formation is reviewed, and the key scientific problems about the material flow which have not been solved effectively are discussed.

Key words: friction stir welding, material flow, marker materials, weld formation

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