航空学报 > 2022, Vol. 43 Issue (4): 525258-525258   doi: 10.7527/S1000-6893.2021.25258

管路构件塑性变形连接技术研究进展及挑战

刘欣1, 杨景超1, 李恒1, 张艳红1, 杨智伟1, 谷箐菲1, 李光俊2, 黄丹2   

  1. 1. 西北工业大学 材料学院 凝固技术国家重点实验室, 西安 710072;
    2. 航空工业成都飞机工业(集团)有限责任公司, 成都 610092
  • 收稿日期:2021-01-12 修回日期:2021-03-05 发布日期:2021-07-09
  • 通讯作者: 李恒 E-mail:liheng@nwpu.edu.cn
  • 基金资助:
    民机项目(MJ-2016-G-64);国家自然科学基金(51775441)

Critical review on tube joining by plastic deformation

LIU Xin1, YANG Jingchao1, LI Heng1, ZHANG Yanhong1, YANG Zhiwei1, GU Jingfei1, LI Guangjun2, HUANG Dan2   

  1. 1. State Key Lab of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
    2. AVIC Chengdu Aircraft Industry (Group) Co., Ltd., Chengdu 610092, China
  • Received:2021-01-12 Revised:2021-03-05 Published:2021-07-09
  • Supported by:
    Commercial Aircraft Research and Development Project of China (MJ-2016-G-64); National Natural Science Foundation of China (51775441)

摘要: 管路构件被广泛应用于航空航天等领域各类先进装备的介质传输构件与结构件,是起着"血管类"生命控制线作用的一类量大面广的关键构件,一般在整个装备中工作环境最为复杂、可靠性要求最为苛刻。各类管路构件的可靠性连接是确保其服役安全性与稳定性的瓶颈问题。管路构件塑性变形连接技术具有连接强度大、可靠性高、连接工艺过程高效环保等优点,已被广泛应用于各类管路构件的连接工艺。然而,随着各类先进装备对长寿命、高功效、轻量化和高可靠性要求的进一步提升,管路构件连接技术正面临新挑战。从接头塑性成形、装配工艺与服役性能等3方面综述了管路构件塑性连接的最新研究进展;结合工艺特点与服役性能,对比分析了几种主要连接结构的工艺过程和服役性能的差异;通过对上述研究进行动态分析,总结提出了管路构件塑性连接技术的发展趋势与所面临的技术挑战。

关键词: 管路构件, 塑性连接, 连接强度, 密封性, 抗疲劳

Abstract: Being the key components that play the role of "blood vessel" life control lines, tubular fittings are widely used in fluids transmission components and structural parts of various advanced equipment such as aerospace, automobile and other fields. Generally, the working environment of tubular fittings is the most complex, and the reliability requirement is the most demanding in the whole equipment. The reliable connection of all kinds of pipe members is the bottleneck problem to ensure the safety and stability of service. Tube joining by plastic deformation technology has the advantages of high connection strength, high reliability, high efficiency and environmental protection during the connection process, and has been widely used in various pipeline connection processes. However, with the further improvement of all kinds of advanced equipment for long life, high efficiency, lightweight and high reliability requirements, tube joining technology is facing new challenges. In this paper, the latest research progress of tube joining by plastic deformation technology is reviewed from the aspects of plastic forming, assembly connection and service performance. Based on the analysis of the above research, the development trend and technical challenges of tube joining by plastic deformation technology are summarized.

Key words: tubular fittings, plastic joining, connection strength, sealing property, fatigue resistance

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