Numerical and experimental investigation of two phase flow for direct metal deposition

In this work, one of the main scientific and technological problem of laser cladding technology, increasing the powder usage coefficient are studied. Two-phase gas-powder flow are investigated. Physical and mathematical models of powder transportation process are discussed. The structure of gas-powd...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-11, Vol.1109 (1), p.12010
Main Authors: Polyanskiy, T A, Zaitsev, A V, Gulyaev, I P, Gurin, A M
Format: Article
Language:English
Subjects:
Laser beam cladding
Nozzle walls
Two phase flow
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Summary:In this work, one of the main scientific and technological problem of laser cladding technology, increasing the powder usage coefficient are studied. Two-phase gas-powder flow are investigated. Physical and mathematical models of powder transportation process are discussed. The structure of gas-powder flows formed by the laser-cladding nozzle and the accuracy of focusing the jet of powder being researched. The main attention is focused on interaction between powder particles and nozzle wall. Presented data collected by gas-powder jet optic diagnostic, results of numerical simulation and their comparison.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1109/1/012010