Guanghui Miao
Research Subjects
Guanghui Miao has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Hong Xu
Key Laboratory of Automotive Materials Ministry of Education, School of Material Science and Technology, Jilin University, Changchun 130022, China
1 shared publication - Jinyi Shao
College of Materials Science and Engineering, Jilin University, Changchun 130025, China
1 shared publication - Lijun Han
FAW-Volkswagen Automotive Co., Ltd., Changchun 130011, China
1 shared publication - Ming Bai
College of Materials Science and Engineering, Jilin University, Changchun 130025, China
1 shared publication - Rui Wang
College of Materials Science and Engineering, Jilin University, Changchun 130025, China
1 shared publication - Xiuming Cheng
College of Materials Science and Engineering, Jilin University, Changchun 130025, China
1 shared publication
Latest Publications
- Open Access
Investigation of the Microstructure and Mechanical Properties of Heat-Treatment-Free Die-Casting Aluminum Alloys Through the Control of Laser Oscillation Amplitude
In this study, laser oscillation welding was utilized to offer an effective solution for the joint welding of heat-treatment-free die-cast aluminum alloys, which expands the practical applications of automotive structural parts and heat sinks for electronic devices. The effects of oscillation amplitude on the macro-morphology, microstructure, and properties of the alloy weld were examined, and a molten pool flow model was developed to compare the behavior of the molten pool with and without oscillation. The results show that increasing the oscillation amplitude eliminates the coarse Al15(Fe,Mn)3Si2 phase, resulting in a finer and more uniform distribution of the eutectic Si and Mg2Si phases. At an oscillation amplitude of 7 mm, the maximum tensile shear load and displacement were 2761 N and 1.17 mm, respectively. Laser oscillation was found to enhance the fluidity of the molten pool, reduce porosity, improve weld quality, and effectively decrease cracks and inhomogeneous grain distribution. These findings provide a research basis for optimizing the laser oscillation welding process and for the practical welding of fabricated devices.
Open AccessInvestigation of the Microstructure and Mechanical Properties of Heat-Treatment-Free Die-Casting Aluminum Alloys Through the Control of Laser Oscillation Amplitude
In this study, laser oscillation welding was utilized to offer an effective solution for the joint welding of heat-treatment-free die-cast aluminum alloys, which expands the practical applications of automotive structural parts and heat sinks for electronic devices. The effects of oscillation amplitude on the macro-morphology, microstructure, and properties of the alloy weld were examined, and a molten pool flow model was developed to compare the behavior of the molten pool with and without oscillation. The results show that increasing the oscillation amplitude eliminates the coarse Al15(Fe,Mn)3Si2 phase, resulting in a finer and more uniform distribution of the eutectic Si and Mg2Si phases. At an oscillation amplitude of 7 mm, the maximum tensile shear load and displacement were 2761 N and 1.17 mm, respectively. Laser oscillation was found to enhance the fluidity of the molten pool, reduce porosity, improve weld quality, and effectively decrease cracks and inhomogeneous grain distribution. These findings provide a research basis for optimizing the laser oscillation welding process and for the practical welding of fabricated devices.