Laser Cladding Process

Laser Cladding is a technology that uses a high-energy density laser beam to fuse cladding material with the surface of a substrate, primarily used for surface modification and repair.

Principle:

The principle of laser cladding is to irradiate the surface of the substrate with a high-energy density laser beam while simultaneously melting the added cladding material and the thin surface layer of the substrate. This results in rapid solidification to form a metallurgically bonded cladding layer. This process significantly improves the substrate's surface properties, such as wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical characteristics.

Applications:

(1) Surface Modification: For components like gas turbine blades, rollers, and gears, it can significantly enhance their wear resistance, corrosion resistance, heat resistance, and other properties. 
(2) Surface Repair: For parts like rotors and molds, the repaired components can achieve over 90% of the original strength, with lower repair costs and reduced maintenance time. 
(3) Laser Additive Manufacturing: By synchronously feeding powder or wire, cladding is applied layer by layer to produce components with three-dimensional structures.

Advantages:

(1) Low Dilution: The cladding layer is closely bonded with the substrate, resulting in low dilution. 
(2) Dense Microstructure: The cladding layer has a dense microstructure, offering excellent performance. 
(3) High Economic Benefits: High-performance alloy surfaces can be fabricated on inexpensive substrates, reducing costs and conserving precious materials.