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Vol.34, No.7, 856 ~ 864, 1996
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| Title |
| Research Paper - Solidification - : 3 - Dimensional Analysis on the Spray Forming Mechanism of Billet |
| 여동훈Dong Hoon Yeo, 석현광Hyun Kwang Seok, 오규환Kyu Hwan Oh, 이호인Ho In Lee, 나형용Hyung Yong Ra |
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| Abstract |
| A 3-dimensional mathematical model to simulate spray forming of billet has been developed. The effect of processing parameters such as spray density constants a and b, substrate angular velocity ω, substrate withdrawal velocity V, eccentric distance l_e and spray angle Φ on the spray forming billet has been studied. The asymmetrical shape was obtained at the low value of substrate angular velocity. The parameters V, l_e, a, b and Φ were found to have no effect on the symmetry of billet. And the necessary condition to reach the steady state of billet growth is as follows : V < a*·(d_0/(d_0-l_e/sinΦ))·cosΦ where d_0 is initial spray distance and a* is spray constant a at spray distance d_0. |
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