研究目的
Investigating the flow behavior of the shielding gas to improve the quality of products manufactured by the selective laser melting (SLM) technology by removing ejected metal particles away from the working plane.
研究成果
The study demonstrated that axis switching and the suction-to-plane distance are important factors for improving the particle removal efficiency during the SLM operation. Optimal parameters for designing the SLM working chamber were determined through CFD analysis accompanied with the Taguchi method.
研究不足
The study focuses on the flow behavior inside the SLM chamber and its impact on particle removal efficiency, but it may not cover all possible factors affecting the SLM process quality.
1：Experimental Design and Method Selection:
Computational fluid dynamics (CFD) with the application of the Taguchi method was employed to investigate the flow field across the working chamber.
2：Sample Selection and Data Sources:
The study involved variations in the geometries of the blowing nozzle, the widths of the suction tunnel, the suction-to-plane distances, and the Reynolds numbers of the blowing flow.
3：List of Experimental Equipment and Materials:
The commercial software CFD-ACE+ (version
4：11820) was used for simulation. Experimental Procedures and Operational Workflow:
20 The simulation was first verified with experimental measurements. The ejecting motions of the metal powders were also taken into consideration to study the interactions between the shielding gas and the ejected particles.
5：Data Analysis Methods:
The particle removal efficiency was used as a primary indicator to explore the interactions between the ejected particles and the flow field of the shielding gas.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
