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Counter-pressure casting control system for large thin-wall aluminum alloy componentsMA Xu-liang(马旭梁), ZHU Zhao-jun(朱兆军), FANG Wen-bin(房文斌), ZENG Song-yan(曾松岩)(School of Materials Science... by the control system is also improved effectively.Key words:large thin-wall aluminum alloy components; counter pressure casting; combined digital valve; control precision......
. A pressure interpolation function was adopted as the free surface boundary condition. The example of large thin wall Al alloy casting was calculated with this model. In the post processing, the location and shape of free surfaces during mold filling were displayed visually with a linear interpolation method. Keyword: large thin-wall castings; SOLA-VOF; fluid flow; heat......
Influence of Processing Conditions on Microstructure and Mechanical Properties of Large Thin-Wall Centrifugal Ti–6Al–4V CastingXin Feng1,Jianke Qiu1,Yingjie Ma1,Jiafeng Lei1,Yuyou Cui1,Xinhua Wu2,Rui... of large thin-wall cylindrical Ti–6Al–4V casting,have been studied.The experimental results show that with the increasing mould pre-heating temperature from 673 to 873 K,the casting microstructures change......
: Counter gravity casting equipments(CGCE) were widely used to produce large thin-walled A357 aluminum alloy components. To improve the pressure control precision of CGCE to get high quality castings... of fully adapting itself to the object. The pressure control error is less than 0.3 kPa. By using this pressure control system, large complex thin-walled A357 aluminum alloy castings with high quality......
for thin-wall parts, it will provide a theoretical foundation for improving thin-wall parts assembly quality of large antenna in future. Key words: thin-wall parts assembly; assembly deformation deviation... parts assembly is essential to ensure the assembly quality, especially the large antenna assembly. The thin-wall parts assembly in manufacturing field, including aeronautical thin-wall structures assembly......
Modelling of Mould Filling and Solidification of Castings Xu Zhian1 (1.WTCM Foundry Centre, Technologiepark 9, 9052 Zwijnaarde, BELGIUM) 摘要:An experimental casting for validation has been designed. The casting is composed of two 50×600×2.5 (width×length×thick) thin-wall pieces. One downsprue is located in the middle. A pouring cup with a stopper is used. This design allows to using two......
the mould wall and grow into interior of casting along the heat transfer direction during alloy solidification. Fig.3 shows the grain sizes of transverse cross-sections of wedge-shaped castings... Effects of microalloying on grain refinement behaviors and hardness properties of wedge-shaped Al-Mg-Mn castings LIU En-ke(刘恩克), YANG Fu-bao(杨福宝), XU Jun(徐骏), SHI Li-kai(石力开) National......
J. Cent. South Univ. (2018) 25: 1107-1115 DOI: https://doi.org/10.1007/s11771-018-3810-z A model of deformation of thin-wall surface parts during milling machining process WANG Ling-yun(王凌云)1... Ji-tao. A model of deformation of thin-wall surface parts during milling machining process [J]. Journal of Central South University, 2018, 25(5): 1107–1115. DOI: https://doi.org......
Simulation of mold filling and prediction of gas entrapment on practical high pressure die castings ZHAO Hai-dong(赵海东), BAI Yan-fei(白砚飞), OUYANG Xiao-xian(欧阳晓贤), DONG Pu-yun(董普云) State..., a method for gas entrapment was established by tracking flow of entrapped gas. The model and method were applied to practical ADC1 high pressure die castings. The gas entrapment prediction was compared......
of thin-wall aluminum alloy under high pressure die casting conditions ZHU Bi-wu1, 2, LI Luo-xing1, 2, LIU Xiao1, 2, WANG Shui-ping1, 2, ZHANG Li-qiang1, 2 (1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University,Changsha 410082, China; 2. College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China) Abstract: The thin-wall......
