Analysis of auxiliary gas flow field for laser cutting of medium-thick plates

WANG Xinyu; YE Xiao

doi:10.12299/jsues.24-0129

Volume 39 Issue 3

Sep. 2025

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Article Navigation > Journal of Shanghai University of Engineering Science > 2025 > 39(3): 300-306

WANG Xinyu, YE Xiao. Analysis of auxiliary gas flow field for laser cutting of medium-thick plates[J]. Journal of Shanghai University of Engineering Science, 2025, 39(3): 300-306. doi: 10.12299/jsues.24-0129

Citation:

WANG Xinyu, YE Xiao. Analysis of auxiliary gas flow field for laser cutting of medium-thick plates[J]. Journal of Shanghai University of Engineering Science, 2025, 39(3): 300-306. doi: 10.12299/jsues.24-0129

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Analysis of auxiliary gas flow field for laser cutting of medium-thick plates

doi: 10.12299/jsues.24-0129

WANG Xinyu,
YE Xiao^,

School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2024-05-02
Available Online: 2025-12-22
Publish Date: 2025-09-30

Abstract

Abstract

A three-dimensional mathematical model of the auxiliary gas flow field in laser cutting of medium-thickness plates was developed based on the Gaussian heat source equation, heat transfer equation, Reynolds-averaged N-S equation and SST k-ω turbulence model. The validity of the simulation model was verified by experiments. Based on the established model, the distribution of pressure, temperature, velocity and shear stress in the auxiliary gas flow field were analyzed, and the effect of nozzle inlet pressure on the dynamic performance of the flow field was investigated. The results show that a reasonable nozzle inlet pressure can improve the dynamic characteristics of the auxiliary gas and cutting quality.
- laser cutting,
- computational fluid dynamics (CFD),
- gas dynamics,
- cutting parameters

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References(16)

References

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