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1974

Patents and Early Research (1970s) 1974: AVCO Everett Research Lab Inc. Gnanamuthu applied for the world's first laser cladding patent (patent number: US3843747), which proposed the use of laser cladding on the surface of the metal substrate, marking the official birth of the technology. The same period: AVCO of the United States carried out laser cladding experiments on easily worn parts of automotive engines (such as valve seats and cylinder blocks), and verified the technical feasibility.

1981

Technical breakthroughs and engineering applications (1980s) 1981: Rolls-Royce successfully cladding cobalt-based alloy on the surface of jet engine blades, significantly improving the wear resistance of the blades, which is the first engineering application of laser cladding in the field of high-end equipment. Mid-to-late 1980s: With the maturity of high-power CO₂ lasers, laser cladding technology has gradually become a cutting-edge topic in the field of surface strengthening, and research focuses on process parameter optimization, cladding layer structure analysis and performance testing.

21st century

Since the 21st century: the popularity of high-power solid-state lasers such as fiber lasers and disk lasers has promoted the development of laser cladding in the direction of high precision, automation and green. New methods such as ultra-high speed laser cladding (EHLA) and coaxial powder feeding technology are emerging, further expanding the application boundaries.

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21st century

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