Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

Yang, Yu-Tong; Qiu, Zhong-Yuan; Zheng, Zhen; Pu, Liang-Xi; Chen, Ding-Ding; Zheng, Jiang; Zhang, Rui-Jie; Zhang, Bo; Huang, Shi-Yao

doi:10.1007/s40436-024-00485-1

Adv. Manuf.

2024

DOI: 10.1007/s40436-024-00485-1

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Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

Yu-Tong Yang,

Zhong-Yuan Qiu,

Zhen Zheng

et al.

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Study on the Influence of Injection Velocity on the Evolution of Hole Defects in Die-Cast Aluminum Alloy

Cao,

Zhang,

Zhu

et al. 2024

Materials

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Aluminum alloy die casting has achieved rapid development in recent years and has been widely used in all walks of life. However, due to its high pressure and high-speed technological characteristics, avoiding hole defects has become a problem of great significance in aluminum alloy die casting production. In this paper, the filling visualization dynamic characterization experiment was innovatively developed, which can directly study and analyze the influence of different injection rates on the formation and evolution of alloy flow patterns and gas-induced defects. As the injection speed increased from 1.0 m/s to 1.5 m/s, the average porosity increased from 7.49% to 9.57%, marking an increase in the number and size of the pores. According to the comparison with Anycasting, simulation results show that a liquid metal injection speed of 1.5 m/s when filling the flow front vs. the previous injection rate of 1.0 m/s caused fractures when filling at the same filling distance. Therefore, the degree of the broken splash at the flow front is more serious. Combined with the analysis of transport mechanics, the fracturing is due to the wall-attached jet effect of the liquid metal in the filling process. It is difficult for the liquid metal to adhere to the type wall in order to fuse with subsequent liquid metal to form cavity defects. With an increase in injection velocity, the microgroup volume formed via liquid breakage decreases; thus the volume of air entrapment increases, finally leading to an increase in cavity defects.

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Study on the Influence of Injection Velocity on the Evolution of Hole Defects in Die-Cast Aluminum Alloy

Cao,

Zhang,

Zhu

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

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Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

Cited by 1 publication

References 32 publications

Study on the Influence of Injection Velocity on the Evolution of Hole Defects in Die-Cast Aluminum Alloy

Study on the Influence of Injection Velocity on the Evolution of Hole Defects in Die-Cast Aluminum Alloy

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