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- W2897909176 abstract "This paper presents experimental and theoretical results of studies the DMD processes. Three-dimensional physical and mathematical analysis of gas-jet transportation of powder particles has been developed. A detailed research of gas and powder stream parameters for coaxial nozzle is performed. The distribution of the 3D mass-flow and the density of powder flow are calculated and the positions of the local powder focus area in the space between the nozzle and the substrate are determined. A dedicated device has been designed and implemented in order to measure the 3D powder jet profiles of existing nozzles. A laser plane from a diode laser He-NE source is placed perpendicularly to the powder jet and creates a 2D slice of the powder flow by lighting it at a given height. Comparisons of numerical simulation results with experimental data are presented. It gives more complete understanding of the physical mechanisms of the processes.This paper presents experimental and theoretical results of studies the DMD processes. Three-dimensional physical and mathematical analysis of gas-jet transportation of powder particles has been developed. A detailed research of gas and powder stream parameters for coaxial nozzle is performed. The distribution of the 3D mass-flow and the density of powder flow are calculated and the positions of the local powder focus area in the space between the nozzle and the substrate are determined. A dedicated device has been designed and implemented in order to measure the 3D powder jet profiles of existing nozzles. A laser plane from a diode laser He-NE source is placed perpendicularly to the powder jet and creates a 2D slice of the powder flow by lighting it at a given height. Comparisons of numerical simulation results with experimental data are presented. It gives more complete understanding of the physical mechanisms of the processes." @default.
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- W2897909176 date "2013-01-01" @default.
- W2897909176 modified "2023-09-27" @default.
- W2897909176 title "Numerical simulation and experimental investigation of three-dimensional gas-jet transportation of powder particles in direct material deposition" @default.
- W2897909176 doi "https://doi.org/10.2351/1.5062885" @default.
- W2897909176 hasPublicationYear "2013" @default.
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