Research on Powder Stream of Coaxial Powder Feeding in Laser Manufacturing Technology

Author:

Quan Heng1,Wang Yun Shan1,Liu Li Feng1,Liu Shao Jun2,Meng Qing Ruo2

Affiliation:

1. Tianjin Polytechnic University

2. China Energy Engineering Group Co.,Ltd

Abstract

Mathematical-physical model of powder stream in coaxial powder feeding was established. The concentration fields of powder stream of coaxial nozzle of different size and powder mass flow rate were analyzed. The concentration field and morphology of the powder stream were detected by CCD camera. The results show that the size of coaxial nozzle and powder mass flow rate are major factors affecting the powder stream. The mathematical-physical model and experimental data provide theoretical basis for laser cladding manufacturing.

Publisher

Trans Tech Publications, Ltd.

Reference5 articles.

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2. Houcai Liu, Jianhua Mo, Haitao Liu: Mechanical Science and Technology for Aerospace Engineering, Vol. 27(2008), pp.1184-1186. In Chinese.

3. B. Ferrara, L. Mullena, E. Jonesb, et al.: Journal of Materials Processing Technology, Vol. 22(2012), pp.355-364.

4. Xichen Yang, Haiming Zhang, Lifeng Liu et al.: Chinese J. Lasers, Vol. 38(2011), p.0601008. In Chinese.

5. Lifeng Liu, Xichen Yang: Chinese J. Lasers, Vol. 38(2011) , p.0703008. In Chinese.

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