Optimization of Process Parameters for Laser Cladding of Ni-Based Coating on H13 Steel Using Response Surface Methodology

• Laser power is the most influential parameter on dilution rate, while scanning speed primarily affects coating height. • Response surface methodology effectively optimizes laser cladding parameters for Ni-based coatings on H13 steel. • The optimized parameters (1.8 kW, 5 mm/s, 12 g/min) yield a coating with low dilution and high microhardness. • The optimized coating exhibits improved wear resistance and a uniform microstructure, enhancing the service life of H13 steel components.