In situ measurement of particle flow during fiber laser additive manufacturing with powder feeding

Jianglin Zou; Zi Wang; Yu Zhao; Xue Han; Jinjie Gong

Results in Physics (Jun 2022)

In situ measurement of particle flow during fiber laser additive manufacturing with powder feeding

Jianglin Zou,
Zi Wang,
Yu Zhao,
Xue Han,
Jinjie Gong

Affiliations

Jianglin Zou: Corresponding authors.; High-power and Ultrafast Laser Manufacturing Lab, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Zi Wang: High-power and Ultrafast Laser Manufacturing Lab, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Yu Zhao: Corresponding authors.; High-power and Ultrafast Laser Manufacturing Lab, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Xue Han: High-power and Ultrafast Laser Manufacturing Lab, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Jinjie Gong: High-power and Ultrafast Laser Manufacturing Lab, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China

Journal volume & issue: Vol. 37
p. 105483

Abstract

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In situ measurement of particle flow is a promising tool to visualize how the particles affect the power feeding laser additive manufacturing (PFLAM). A simple and robust platform based on optical feedback interferometry (OFI) was implemented in this study. The diameters of particles, the change of particle density, and the agglomeration behavior of particles in the powder stream generated by the powder feeder can be measured through in situ measurements based on the OFI. Signal detection and data processing became more difficult when the particle diameter was much larger or much smaller than the detection laser wavelength. The distribution of particles in fiber laser-induced plume with a diameter ranging from 0.3 μm to 4 μm can be measured using the OFI in laser additive manufacturing with powder feeding. The percentage of particles with a diameter of about 0.65 μm in plume decreased significantly with the increase of laser power.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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