Basic Performance Characterization of Ultra-High-Speed Laser Cladding Coatings Compared to Conventional Laser Cladding—Surface Quality. Below, Guosheng Laser explains the commonalities among ultra-high-speed laser cladding, high-speed laser cladding, and conventional laser cladding, as well as the advantages of ultra-high-speed and high-speed laser cladding over conventional laser cladding. We hope this information is helpful to those interested in this field.

Commonalities Among Ultra-High-Speed Laser Cladding, High-Speed Laser Cladding, and Conventional Laser Cladding:

1. Universal Cladding Materials: Materials that can be used in conventional laser cladding can also be melted using high-speed laser cladding. Some materials that cannot be clad with conventional laser cladding, such as high-melting-point materials, can be melted using high-speed laser cladding.

2. All Use Metallurgical Bonding: However, the coating effect of high-speed cladding is similar to thermal spraying, with a smooth surface. Conventional cladding exhibits significant fluctuations.

3. Universal Process Route: The key adjustments in conventional laser cladding processes are also the focus of adjustments in high-speed laser cladding processes.

4. Consistent Application Fields: High-speed laser cladding can be applied in fields where conventional laser cladding is applicable, as well as in fields where conventional laser cladding cannot be applied. In simple terms, high-speed laser cladding can achieve what conventional laser cladding can, and it can also achieve what conventional laser cladding cannot.

Advantages of Ultra-High-Speed Laser Cladding and High-Speed Laser Cladding Compared to Conventional Laser Cladding:

1. Surface Roughness After High-Speed Laser Cladding: Ra ~5-10μm;

2. Direct Grinding and Polishing of 0.15-0.20mm After Cladding Can Achieve a Mirror Surface, Ra ≤0.4;

3. Conventional Laser Cladding Surfaces Exhibit Significant Fluctuations of 0.4-0.5 mm, Requiring Subsequent Processing: Turning + Grinding + Polishing;

4. High-Speed Laser Cladding Can Achieve Cladding on Copper and Aluminum: Copper and aluminum have high thermal conductivity, making it difficult to form a molten pool on the substrate, which complicates cladding. The power density of high-speed laser cladding is 5-10 times that of conventional laser cladding, and part of the light directly acts on the substrate, forming a molten pool on copper and aluminum substrates. This is the main reason why high-speed laser cladding can achieve melting on copper and aluminum.