Next Article in Journal
Optimizing Rheology and Structure of Silver Pastes for Screen-Printed Silicon Solar Cells
Next Article in Special Issue
A Prediction Model of Interlayer Bond Strength for 3D-Printed Concrete Considering Printing Interval and Environmental Effects
Previous Article in Journal
Effect of Ti Doping on the Grain Boundary Phases in Sintered Nd-Ce-Fe-B and Its Influence on the Diffusion Behavior of Heavy Rare Earth Dy
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 19
Issue 5
10.3390/ma19050917
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Enhancing the Performance of Laser Powder Bed-Fused Inconel 718 Through Effective Spatter Removal via Atmosphere Protection System Optimization

by
Yuxuan Jiang
,
Yin Wang
,
Yukai Chen
,
Yu Lu
,
Chuyue Wen
,
Bin Han
and
Qi Zhang
*
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
*
Author to whom correspondence should be addressed.
Materials 2026, 19(5), 917; https://doi.org/10.3390/ma19050917
Submission received: 28 January 2026 / Revised: 17 February 2026 / Accepted: 24 February 2026 / Published: 27 February 2026
(This article belongs to the Special Issue Additive Manufacturing of Structural Materials and Their Composites)
Browse Figures
Versions Notes

Abstract

While extensive research on laser powder bed fusion has focused on optimizing process parameters to improve the performance of manufactured parts, the critical role of effective spatter particle removal in mitigating defects during manufacturing has not received commensurate attention. To address these issues, this study investigates the influence of a key parameter in the atmosphere protection system, namely, airflow velocity, on part performance. Methodologically, a combined approach of numerical simulation and experimental methods was employed to examine in detail the effect of airflow velocity on spatter removal efficiency and its corresponding contribution to the enhancement of formed Inconel 718 part quality. First, Computational Fluid Dynamics–Discrete Phase Model simulations identified an optimal airflow velocity of 0.57 m/s. Subsequently, experimental observations using a high-speed camera system revealed that velocities below 0.6 m/s led to spatter redeposition, resulting in pore and defect formation, whereas velocities exceeding 0.6 m/s increased spatter size and reduced molten-pool stability. The simulation and experimental results are consistent, demonstrating that an appropriate airflow velocity can effectively suppress defects and thereby improve the quality of the fabricated components. This research provides a viable pathway for significantly enhancing the mechanical properties of laser powder bed-fused Inconel 718.
Keywords: laser powder bed fusion; spatter particle removal; atmosphere protection system; the mechanical properties of laser powder bed fused Inconel 718 laser powder bed fusion; spatter particle removal; atmosphere protection system; the mechanical properties of laser powder bed fused Inconel 718
Graphical Abstract

Share and Cite

MDPI and ACS Style

Jiang, Y.; Wang, Y.; Chen, Y.; Lu, Y.; Wen, C.; Han, B.; Zhang, Q. Enhancing the Performance of Laser Powder Bed-Fused Inconel 718 Through Effective Spatter Removal via Atmosphere Protection System Optimization. Materials 2026, 19, 917. https://doi.org/10.3390/ma19050917

AMA Style

Jiang Y, Wang Y, Chen Y, Lu Y, Wen C, Han B, Zhang Q. Enhancing the Performance of Laser Powder Bed-Fused Inconel 718 Through Effective Spatter Removal via Atmosphere Protection System Optimization. Materials. 2026; 19(5):917. https://doi.org/10.3390/ma19050917

Chicago/Turabian Style

Jiang, Yuxuan, Yin Wang, Yukai Chen, Yu Lu, Chuyue Wen, Bin Han, and Qi Zhang. 2026. "Enhancing the Performance of Laser Powder Bed-Fused Inconel 718 Through Effective Spatter Removal via Atmosphere Protection System Optimization" Materials 19, no. 5: 917. https://doi.org/10.3390/ma19050917

APA Style

Jiang, Y., Wang, Y., Chen, Y., Lu, Y., Wen, C., Han, B., & Zhang, Q. (2026). Enhancing the Performance of Laser Powder Bed-Fused Inconel 718 Through Effective Spatter Removal via Atmosphere Protection System Optimization. Materials, 19(5), 917. https://doi.org/10.3390/ma19050917

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop