Laser & Optoelectronics Progress, Volume. 50, Issue 2, 21402(2013)
Research on the Key Parameters of Powder-Feeding Nozzle for Laser Cladding Forming
In the process of laser cladding forming, the performance of the powder-feeding nozzle has an important influence on the quality of cladding molded parts. To explore the key parameters that affect the performance of the powder-feeding nozzle, numerical calculation model is established using FLUENT software. Numerical simulation is performed on powder flow for the powder-feeding channel with different contraction angles and outlet diameters, and the key parameters of the powder-feeding nozzle are determined based on the simulation results. The results show that the contraction angle of powder-feeding channel of 2.5° and the diameter of powder outlet of 1.5 mm are beneficial to improve the powder convergence of powder-feeding nozzle and the cladding forming effect with other process parameters invariable. A powder-feeding nozzle is fabricated based on the obtained key parameters, and the experiment of powder convergence and laser cladding forming is carried out. The effect of powder-feeding nozzle is validated.
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Wang Wei, Cai Lei, Yang Guang, Bian Hongyou, Qin Lanyun, Wang Wei, Xiang Kun, Tong Ming, Qi Peng, Wei Qiang. Research on the Key Parameters of Powder-Feeding Nozzle for Laser Cladding Forming[J]. Laser & Optoelectronics Progress, 2013, 50(2): 21402
Category: Lasers and Laser Optics
Received: Oct. 11, 2012
Accepted: --
Published Online: Jan. 8, 2013
The Author Email: Wei Wang (rpm@sau.edu.cn)