Structure design of power feeding nozzle for wide-band laser cladding and investigation of powder flow

doi:10.7523/j.issn.2095-6134.2019.05.006

Abstract

Abstract: In this work, we designed a new structure of powder feeding nozzle for wide-band laser cladding and effectively solved the problem of excessive divergence angle in the scanning direction by using multi-channel exits. The powder flow concentration in the vertical scanning direction was adjusted by adding an internal cylinder. Discrete phase model was built for investigation of the particle mass concentration. The cylinder diameter was optimized to obtain wide-band powder flow with uniform concentration distribution and wide-band coating with uniform thickness.

Key words: wide-band laser cladding, powder flow, nozzle, structural design, numerical simulation

CLC Number:

V261.8
TH122

CHEN Ru, YU Gang, HE Xiuli, ZHANG Yue, LI Shaoxia. Structure design of power feeding nozzle for wide-band laser cladding and investigation of powder flow[J]. , 2019, 36(5): 614-619.

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