Posted By on August 4, 2023

Laser Cladding: Application and Prospects of Emerging Surface Modification Technology

What is laser cladding?

Laser cladding, also known as laser cladding or laser deposition, is an innovative surface modification technology. It adds cladding material to the surface of the substrate and uses a high-energy density laser beam to simultaneously melt it with the thin layer on the surface of the substrate, forming an additive cladding layer metallurgically bonded to the substrate surface.

Working principle of laser cladding

Laser cladding is a method of placing selected coating materials on the surface of the substrate in different ways. After laser irradiation, the thin layers of the coating and substrate surface melt simultaneously and form a surface coating with low dilution after rapid solidification. This coating metallurgically combines with the substrate, significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties of the substrate surface. The laser cladding process not only meets the requirements for specific properties of material surfaces but also saves a large amount of valuable elements to achieve the purpose of surface modification or repair.

Comparison between laser cladding and traditional technologies

Compared with traditional technologies such as welding, spraying, electroplating, and chemical vapor deposition, laser cladding has the following significant characteristics:

Low dilution: In laser cladding technology, the coating is well bonded to the substrate with low dilution, ensuring stable and reliable coating performance.

Dense structure: Due to the effect of high-energy density laser beam, the coating forms a dense structure, which improves the strength and hardness of the coating.

Suitable for diverse cladding materials: Laser cladding technology is suitable for various types of cladding materials, providing more choices.

Large changes in particle size and content: Laser cladding can achieve a wide range of changes in particle size and content of materials, further expanding its application fields.

Application prospects of laser cladding technology

Due to the unique advantages of laser cladding technology, it has broad application prospects in many fields:

  1. Industrial manufacturing
    Laser cladding technology can be used for component repair and surface modification in industrial manufacturing. By adding suitable materials to high-wear parts through cladding, it can extend the service life of components and improve equipment reliability and stability.
  2. Aerospace
    The aerospace industry requires extremely high material performance. Laser cladding technology can provide high-performance surface coatings for aircraft engines, spacecraft components, etc., enhancing their corrosion resistance and high-temperature resistance.
  3. Energy industry
    In the energy field, laser cladding can be used for repair and strengthening of components such as burners and turbine blades, improving the efficiency and stability of energy equipment.
  4. Automotive manufacturing
    For the automotive manufacturing industry, laser cladding technology can be used for surface strengthening of engine components, gearbox gears, etc., improving the performance and reliability of automobiles.
  5. Medical equipment
    In the field of medical equipment manufacturing, laser cladding technology can be used for artificial joints, implantable medical devices, etc., increasing their wear resistance and biocompatibility.


As an emerging surface modification technology, laser cladding has many advantages, making it show broad application prospects in multiple fields. Its unique working principle and differences from traditional technologies give laser cladding unique advantages in material surface modification and repair. Laser cladding technology has important application value in industrial manufacturing, aerospace, energy industry, automotive manufacturing, medical equipment, and other fields, contributing to the development and progress of related industries. With the continuous progress of science and technology, it is believed that laser cladding technology will have more extensive development space in the future, bringing more surprises and breakthroughs to various industries.

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    Laser Cladding: Application and Prospects of Emerging Surface Modification Technology
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