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Experiment on fluid regime under different rotate velocity in physical simulation of titanium vertical centrifugal casting

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Abstract

In this paper, the physical simulation of filling process of vertical centrifugal casting (VCC) of complex titanium alloy casting was studied. Combined with the mature PTV particle tracking technology, the high-speed photography pictures of the filling process of VCC at different rotational speeds were obtained. The trajectory and velocity information of tracer particles in the rotating flow field were obtained by the corresponding analysis software. Then, through the analysis and modeling of quantitative experimental data, the flow behavior characteristics and movement law of titanium alloy melt in the mold cavity under different mold speeds were studied. The results show that: 1. When the mold is still, the front edge of the filling fluid forms a curved surface with the curvature center pointing to the outside of the mold; when the mold rotates, the front edge of the liquid flow forms a curved surface with the curvature center pointing to the inside of the mold; 2. With the increase of the mold rotation speed, the speed of the fluid filling the mold increases significantly; when the rotational speed is greater than 120 rpm, the fluid still has a certain driving force in the mold center far away from the gate; it is good for filling the inner corner of mold with fluid; and 3. When the rotational speed of centrifugal casting of titanium alloy reaches 45 rpm or above, typical turbulent vortices appear in the wake; with the increase of rotating speed to 180 rpm, the average curvature radius of turbulent vortices first increases and then decreases, and reaches the minimum value of 0.67 cm at 120 rpm.

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Data availability

The data that support the findings of this study are available from the corresponding authors, upon reasonable request.

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Funding

This work is supported by National Key R&D Program 2020YFB1710100. The authors would also like to acknowledge financial support from the National Natural Science Foundation Council of China (Grant No. 51605174, No. 51775205, No. 51905188).

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Authors and Affiliations

  1. State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science & Technology, Wuhan, Hubei, 430074, People’s Republic of China

    Yajun Yin, Xin Peng, Gen Xiao, Xiwang Qie, Xu Shen, Peng Wan, Xiaoyuan Ji & Jianxin Zhou

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  1. Yajun Yin
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  2. Xin Peng
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  3. Gen Xiao
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  4. Xiwang Qie
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  6. Peng Wan
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  7. Xiaoyuan Ji
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  8. Jianxin Zhou
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Contributions

All authors developed the theory and performed the computations. Also, all authors discussed the results and contributed to the final manuscript.

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Correspondence to Xu Shen.

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Yin, Y., Peng, X., Xiao, G. et al. Experiment on fluid regime under different rotate velocity in physical simulation of titanium vertical centrifugal casting. Int J Adv Manuf Technol 120, 583–597 (2022). https://doi.org/10.1007/s00170-021-08516-y

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  • DOI: https://doi.org/10.1007/s00170-021-08516-y

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