In urban areas, particle pollution can always be serious enough to endanger health. Among them, 25% of the fine particles are emitted from brake disc wear. The new wear-resistant material laser cladding layer can realize the wear-resistant and anti-corrosion coating of automobile brake discs now.

Therefore, construction machinery and equipment and their components need to be maintained or repaired on a regular basis, with heavy maintenance workload and high maintenance costs. At present, most of the construction machinery and equipment parts are repaired by electroplating, thermal spraying and other methods for surface coating, which have various limitations such as pollution, low bonding strength, and short service life. Laser cladding, as an efficient and highly-performed surface engineering, has huge application prospects in the field of construction machinery.

Laser cladding uses a high-energy laser as the heat source and alloy powder as the cladding material. The alloy powder is simultaneously irradiated by the laser to quickly melt on the surface of the workpiece to form a molten pool, and then rapidly solidify to form a dense, uniform and thickness-controllable metallurgical bonding layer. Improving the wear resistance, corrosion resistance, high temperature resistance, oxidation resistance and other properties of metal parts can not only restore the use of failed parts, but also significantly extend the service life of new parts.

Laser cladding technology is a material surface modification technology that has developed rapidly in recent decades. It has excellent characteristics that many conventional technologies cannot achieve, such as low requirements for the working environment, small deformation of the workpiece after processing, and obtaining a high-hardness surface modification layer.

Industry demand: The application of mould is very wide, and most of the components manufacturing need to be molded. The service life of the mould depends on its ability to resist wear and mechanical damage. Once excessively worn or mechanically damaged, it is difficult to repair the damaged parts of