Research Progress of Cold Spray Technology in Aeronautical Repair Field

WANG Shuai; TIAN Dongdong

doi:10.7643/issn.1672-9242.2026.07.011

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (7) : 108-121. DOI: 10.7643/issn.1672-9242.2026.07.011

Aviation and Aerospace Equipment

Research Progress of Cold Spray Technology in Aeronautical Repair Field

WANG Shuai¹, TIAN Dongdong²

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Abstract

Cold spray technology, characterized by its low-temperature solid-state deposition mechanism, has demonstrated compelling technical advantages over conventional repair processes such as thermal spray and welding in the field of aerospace component maintenance and restoration. This paper reviews the fundamental principles, process characteristics, and feedstock powder systems of cold spray, and systematically surveys the progress of cold spray repair applications for typical aerospace components including aluminum/magnesium lightweight alloys and titanium alloys. Building on this foundation, the key technical challenges and development trends are analyzed and prospected, with particular focus on accessibility to complex geometries and portable equipment development, intelligent trajectory planning, and closed-loop process control. Overall, cold spray has accelerated its transition from laboratory research toward engineering implementation, demonstrating significant strategic value in aerospace maintenance and sustainment.

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cold spray / aerospace repair / aluminum alloy / titanium alloy / application progress

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WANG Shuai, TIAN Dongdong. Research Progress of Cold Spray Technology in Aeronautical Repair Field[J]. Equipment Environmental Engineering. 2026, 23(7): 108-121 https://doi.org/10.7643/issn.1672-9242.2026.07.011

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