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Laser Cladding
Date:2025-09-25 15:42     Source:daokedao     Browse:15

Traditional arc overlaying has a wide heat affected zone, and huge heat input will cause uncontrollable deformation and residual stress of the workpiece, which usually requires a lot of subsequent processing to correct, or even damage the matrix performance. Although the heat input of thermal spraying technology is small, the combination of the coating and the substrate is mainly mechanical anchoring, and there is a risk of peeling under high impact or heavy load conditions. Laser cladding technology perfectly realizes the principle of "developing advantages and avoiding disadvantages". Through extremely high energy density and extremely fast action time, the heat affected zone is controlled at the micrometer level to avoid the thermal deformation of the workpiece to the maximum extent. More importantly, the coating has a strong metallurgical bond with the substrate, with a bond strength of up to 70% - 80% of the material itself, much higher than the thermal spray coating. Through advanced process research, DKD Laser can accurately control the dilution rate, ensure the perfect design performance of cladding materials, and realize leapfrog improvement in the performance of repaired parts.

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