Prediction Method of Shrinkage Cavity and Shrinkage Porosity in Solidification Process Under Low-Pressure Casting

2012 ◽  
Vol 9 (9) ◽  
pp. 1447-1452
Author(s):  
Hua Hou ◽  
Yuhui Zhao ◽  
Yuhong Zhao
Keyword(s):  
Prediction Method ◽  
Solidification Process ◽  
Low Pressure ◽  
Shrinkage Porosity ◽  
Shrinkage Cavity ◽  
Pressure Casting ◽  
Low Pressure Casting

scholarly journals Numerical Simulation of Latent Heat of Solidification for Low Pressure Casting of Aluminum Alloy Wheels

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1024
Author(s):  
Qingchun Zheng ◽  
Yinhong Xiao ◽  
Tao Zhang ◽  
Peihao Zhu ◽  
Wenpeng Ma ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Temperature Change ◽  
Solidification Process ◽  
Casting Process ◽  
Low Pressure ◽  
Pressure Casting ◽  
Alloy Wheel ◽  
Simulation And Experiment ◽  
Low Pressure Casting ◽  
The Mathematical Model

In this paper, aiming at focusses on many problems existing in the mathematical model of temperature change in the low-pressure casting solidification process of aluminum alloy wheel hub, there is a big gap between the simulation and the actual temperature change, which affects the research on the solidification defects of the wheel hub. In order to study the solidification behavior of aluminum alloy hub in low-pressure casting process, the mathematical model describing the temperature change in the process of casting solidification is established by using different solidification latent heat methods. through finite element simulation and experiment, the temperature change in the process of aluminum alloy (A356) solidification is obtained to compare the difference between the temperature change described by different mathematical models, simulation and experiment. The results show that the temperature numerical model of "the temperature compensation heat capacity method" proposed in this paper is most consistent with the simulation temperature change during the solidification process of the aluminum alloy wheel in the simulation mold, which lays a good theoretical foundation for the study of the low-pressure casting process of the aluminum alloy wheel hub.

The Numerical Simulation about Second Dendrite Spacing of Low Pressure Casting Automobile Aluminum Magnesium Alloy Wheel

2011 ◽  
Vol 189-193 ◽  
pp. 2096-2102 ◽  
Author(s):  
Xin Zhao ◽  
Yan Wei Sui ◽  
Ai Hui Liu ◽  
Fei Fei Wang ◽  
Zhi Sun ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Cooling Water ◽  
Casting Process ◽  
Low Pressure ◽  
Pressure Casting ◽  
Pouring Temperature ◽  
Alloy Wheel ◽  
Preheating Temperature ◽  
Low Pressure Casting ◽  
Cooling Pipes

Using the method of numerical simulation and the AnyCasting software, the simulation for SDAS of Al-Mg alloy wheels for low pressure casting is studied. The simulation model is established and the effects of preheating temperature, melt pouring temperature and cooling water pipes on SDAS in the low pressure casting process was founded. The results show that, SDAS presents linear variation with the increase of preheating temperature and pouring temperature; opened cooling pipes make SDAS smaller. The practice of simulating casting is verified by experiments, and test results and simulation results were consistent.

Effects of Electromagnetic Filling Parameters on Density of Al-Si Alloy in Low Pressure Casting

2011 ◽  
Vol 403-408 ◽  
pp. 3291-3294
Author(s):  
Shao Long Wu ◽  
Yu Xing Wang
Keyword(s):  
Electromagnetic Field ◽  
Electric Current ◽  
Low Pressure ◽  
Influential Factors ◽  
Pressure Casting ◽  
Cyclic Time ◽  
Low Pressure Casting

Effects of electromagnetic filling parameters on Density of Al-Si alloy in low pressure casting were investigated. The key influential factors on Density of Al-Si Alloy were determined by orthogonal testing. The results show that the influential orders of electric current, magnetic inductivity and cyclic time on the density of the ZL114 alloy are as follows: electric current, then magnetic inductivity, and then cyclic time. Electric current and electromagnetic field can effectively improve the density of the ZL114 alloy in low pressure casting.

Processing of Al/Al_3Ti Composites by Low Pressure Casting-Combustion Synthesis Process

2004 ◽  
Vol 2004.6 (0) ◽  
pp. 289-290
Author(s):  
K. Mizuuchi ◽  
T. Takeuchi ◽  
M. Fukusumi ◽  
M. Sugioka ◽  
M. Itami ◽  
...  
Keyword(s):  
Combustion Synthesis ◽  
Low Pressure ◽  
Synthesis Process ◽  
Pressure Casting ◽  
Low Pressure Casting
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