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This paper presents the results of an experimental and analytical study on the manufacturing technology of the metal attachments with longitudinal elements for heterogeneous “metal–composite” joints. A detailed review and analysis of existing mechanical, adhesive, combined, and heterogeneous joining methods is carried out, with their respective advantages, limitations, and fields of application identified. Based on the analysis, a design and fabrication procedure are proposed for producing blanks from high-strength AISI 4130 structural steel, incorporating longitudinal cylindrical elements made of AISI 1566 spring steel. The choice of low-temperature soldering using Sn60Pb40 solder is substantiated by mechanical and technological considerations, ensuring preservation of material properties. Strength-equivalence conditions and analytical relationships are used to determine the optimal geometric parameters of contact surfaces and the length of the solder seam. The developed technology provides a uniform stress distribution in the joint zone, improves load-bearing capacity, enhances structural reliability, and facilitates ease of automation, making it suitable for high-volume production in aerospace and transportation engineering.

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Technological Aspects of Producing Metal Attachments with Longitudinal Elements in Metal–Composite Joints

  • 会议论文

  • 发表日期：

    2026年

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  • Kostiantyn Barakhov,
  • Fedir Gagauz,
  • Alla Garbuz,
  • Andrii Voytovich,
  • Oleksii Vambol

摘要

This paper presents the results of an experimental and analytical study on the manufacturing technology of the metal attachments with longitudinal elements for heterogeneous “metal–composite” joints. A detailed review and analysis of existing mechanical, adhesive, combined, and heterogeneous joining methods is carried out, with their respective advantages, limitations, and fields of application identified. Based on the analysis, a design and fabrication procedure are proposed for producing blanks from high-strength AISI 4130 structural steel, incorporating longitudinal cylindrical elements made of AISI 1566 spring steel. The choice of low-temperature soldering using Sn60Pb40 solder is substantiated by mechanical and technological considerations, ensuring preservation of material properties. Strength-equivalence conditions and analytical relationships are used to determine the optimal geometric parameters of contact surfaces and the length of the solder seam. The developed technology provides a uniform stress distribution in the joint zone, improves load-bearing capacity, enhances structural reliability, and facilitates ease of automation, making it suitable for high-volume production in aerospace and transportation engineering.