研究目的
To investigate the structure and properties of aluminum composite produced by laser-assisted cold spray additive manufacturing for aerospace and medical applications.
研究成果
The use of LCS process as additive technology is promising for obtaining functional materials with gradient properties. Gradient zones were identified by chemical composition and density. The study demonstrated the potential for controlled zones with increased or decreased density of the base material.
研究不足
The study is limited to the investigation of a single-layer material with a thickness of 1.5–2.5 mm. The porosity of the material and the need for further processing such as hot isostatic pressing were noted as areas for optimization.
1：Experimental Design and Method Selection:
The study utilized laser-assisted cold spray (LCS) additive manufacturing to construct a layer of material from a mechanical mixture of aluminum Al powder with corundum powder Al2O
2：Sample Selection and Data Sources:
A plate made of Inconel 625 was used as the substrate. A mechanical mixture of aluminum powder and corundum powder was prepared.
3：List of Experimental Equipment and Materials:
The setup included an industrial robot arm Fanuc-M20iA, a fuse head KUKA-MWO with a continuous IPG laser LS-3 ytterbium fiber laser, and a spray gun for cold gas-dynamic spraying of low pressure Dimet-
4：Experimental Procedures and Operational Workflow:
4 The layer was constructed by sequential deposition of straight tracks. The spray gun applied powder at supersonic speed, and the laser beam heated the substrate and the deposited powder simultaneously.
5：Data Analysis Methods:
The structure of the obtained sample was studied using optical and scanning electron microscopy, and mechanical properties were studied using the Vickers hardness test.
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IPG laser LS-3
LS-3
IPG
Ytterbium fiber laser used for heating the substrate and deposited powder.
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Leica DMI5000 M
DMI5000 M
Leica
Optical microscope used for studying the structure of the sample.
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Fanuc-M20iA
M20iA
Fanuc
Industrial robot arm used for the additive manufacturing process.
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KUKA-MWO
MWO
KUKA
Fuse head used in the additive manufacturing setup.
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Dimet-405
405
Dimet
Spray gun for cold gas-dynamic spraying of low pressure.
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Analysette 22 NanoTec plus
22 NanoTec plus
Analysette
Particle size measurement instrument.
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TESCAN Mira 3 LMU
Mira 3 LMU
TESCAN
Scanning electron microscope used for studying the structure of the sample.
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Zwick / Roell ZHU
ZHU
Zwick / Roell
Universal hardness tester used for mechanical properties study.
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