On verification of numerical hydrodynamic model of powder-based laser metal deposition process

The developed hydrodynamic model of laser cladding (LC) considering catchment efficiency is verified with experimental data for steel powder LC in a wide range of process parameters. The comparison of the main calculated output parameters (depth of the penetration, track width and height) with experimental data is held. The experimental track profile is compared with the results of the calculations. It is shown that the model works well even for unhealthy high dilution parameter sets and could be used for processing window search. (paper)