Effects of Powder Feeding Rate on Interaction between Laser Beam and Powder Stream in Laser Cladding Process

Effects of Powder Feeding Rate on Interaction between Laser Beam and Powder Stream in Laser Cladding Process

A theoretical model was presented to calculate the laser intensity distribution and the particle temperatures at different sites of the work-piece in the laser cladding process. By using this model, the effects of the powder feeding rate on the laser intensity distribution and the particle temperatu...

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Veröffentlicht in:Journal of Wuhan University of Technology. Materials science edition 2004-12, Vol.19 (4), p.69-72
Hauptverfasser: Huang, Yan-Lu, Li, Jian-Guo, Liang, Gong-Ying, Su, Jun-Yi
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container_title Journal of Wuhan University of Technology. Materials science edition
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creator Huang, Yan-Lu
Li, Jian-Guo
Liang, Gong-Ying
Su, Jun-Yi
description A theoretical model was presented to calculate the laser intensity distribution and the particle temperatures at different sites of the work-piece in the laser cladding process. By using this model, the effects of the powder feeding rate on the laser intensity distribution and the particle temperatures were investigated, the calculated results under the condition of different injection angles were also plotted. It is shown that with increasing the injection angle, the laser intensity distributions are similar but the peak value of the laser intensity decreases . Simultaneously, the peak value of the particle temperature increases and the distribution of the particle temperatures gets central symmetrical gradually. These tests results should be considered in model of laser cladding due to their subtle effects on the dynamic processes in laser molten pool.
doi_str_mv 10.1007/bf02841373
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title Effects of Powder Feeding Rate on Interaction between Laser Beam and Powder Stream in Laser Cladding Process
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