Laser cladding is a new surface modification technology. It forms an additive cladding layer that is metallurgically bonded to the surface of the substrate by adding a cladding material to the surface of the substrate and using a high energy density laser beam to fuse it with a thin layer of the substrate surface.
Laser cladding means that the selected coating material is placed on the surface of the substrate to be coated by different laser irradiation to be melted simultaneously with a thin layer of the surface of the substrate, and rapidly solidified to form a very low dilution. A surface coating that is metallurgically bonded to the substrate to significantly improve the wear, corrosion, heat, oxidation and electrical properties of the surface of the substrate to achieve surface modification or repair, which not only meets the surface specificity of the material. The performance requirements save a lot of valuable elements.
Compared with surfacing, spraying, electroplating and vapor deposition, laser cladding has the characteristics of small dilution, compact structure, good coating and matrix bonding, suitable for cladding materials, large changes in particle size and content, etc. The application prospects are very broad.