Open AccessStudying the process of powder transportation during laser cladding with a coaxial nozzle
Author(s) -
T. A. Polyanskiy,
А. В. Зайцев,
G. V. Ermolaev
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1404/1/012037
Subject(s) - coaxial , nozzle , materials science , mechanics , cladding (metalworking) , computer simulation , laser , particle (ecology) , flow (mathematics) , mechanical engineering , composite material , optics , engineering , physics , oceanography , geology
Results of experiments and numerical modeling of gas-powder flow for laser cladding are presented. Numerical simulation is based on solving Navier-Stokes equations with Lagrange approach for particle. The main attention is paid to the process of interaction between powder particles and nozzle walls. Simple particle-wall interaction model was suggested and verified with experiments for gas-powder jet formed in the long tubes with different diameters. The model was used for simulation of powder transport in the coaxial nozzle for laser cladding.