ZL114A铸造铝合金电磁密封铆接工艺参数研究
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1.首都航天机械有限公司,北京 100076;2.中国航天科技集团有限公司,北京 100076

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V462

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Study on Processing Parameters of Electromagnetic Self-sealing Riveting on ZL114A Aluminum Alloy Structure
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1.Capital Aerospace Machinery Corporation,Beijing 100076;2.China Aerospace Science and Technology Corporation,Beijing 100076

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    摘要:

    为解决传统气动锤击干涉密封铆接质量一致性差、可靠性低的问题,开展电磁密封铆接工艺参数研究工作。以ZL114A铸造铝合金为典型材料,借助正交试验法以制孔精度、划窝形式和墩头形式为变量,以铆接后密封性能为指标开展试片级性能试验。结果表明:在H8底孔精度、凸形墩头和双角度窝条件下试片的漏率最低、密封性能最好,且划窝形式对密封性能的影响最大;同时漏率与干涉量检测进一步表明,在干涉量未达到自封铆接标准要求下,试片同样满足密封要求,从工程化应用角度考虑,特定情况下干涉量要求可放宽至0.4%。

    Abstract:

    To solve the problems of poor quality consistency and low reliability of traditional pneumatic hammering interference sealing riveting,the research on the process parameters of electromagnetic sealing riveting was carried out.Taking ZL114A cast aluminum alloy as a typical material,the orthogonal test method was adopted with hole-making accuracy,notch form,and head form as variables and the performance of test pieces was tested based on the sealing performance after riveting.The results show that the leakage rate of the specimen is the lowest and the sealing performance is the best under the conditions of H8 bottom hole accuracy,convex head and double-angle notches,and the north form had the greatest impact on the sealing performance.Further analysis of leakage rate and interference amount measurements shows that test specimens still meet sealing requirements even when the interference amount does not meet the self-sealing riveting standard requirements.Therefore,from an engineering application perspective,the interference amount requirement can be relaxed to 0.4% under specific conditions.

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檀甜甜,景迪,高亮,臧建新,韩剑. ZL114A铸造铝合金电磁密封铆接工艺参数研究[J].宇航材料工艺,2025,55(3):86-90.

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历史
  • 收稿日期:2023-12-13
  • 最后修改日期:2025-06-12
  • 录用日期:2024-03-12
  • 在线发布日期: 2025-06-27
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