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A three-dimensional model of the spray forming method

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Abstract

A three-dimensional model has been formulated to calculate the shape of the general preform, using vector calculus. The shape of a rod, tube, plate, or irregular preform can be calculated at given spray forming conditions. The shape of a spray-formed rod was analyzed at various spray forming conditions using the three-dimensional model. The effects of spray forming parameters, such as spray distribution parameters, angular velocity of rotation, withdrawal velocity, spray angle, and eccentric distance on rod shape, were analyzed. The most important parameters affecting the shape of rods are the spray distribution parameters and the withdrawal velocity. The dynamic evolution of rod shape with a stepwise variation of the withdrawal velocity during spray forming was investigated. The effect of a stepwise change of the withdrawal velocity was the same as that of the scanning atomizer. The calculated surface profiles were compared with those of spray-formed 7075 aluminum alloy rods prepared on a pilot scale. The calculated results for the surface profiles were in agreement with those of the spray-formed rods.

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Author notes

  1. Dong-Hun Yeo

    Present address: the Division of Materials Science and Engineering, Seoul National University, Korea

Authors and Affiliations

  1. the Division of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea

    Hyun-Kwang Seok, Kyu Hwan Oh (Professor) & Hyung Yong Ra (Professor)

  2. the Rapidly Solidified Materials Research Center, 305-764, Taejon, Korea

    Hyun-Kwang Seok, Kyu Hwan Oh (Professor) & Hyung Yong Ra (Professor)

  3. Daewoo Motors Company Technical Center, 403-714, Inchon, Korea

    Dong-Hun Yeo

  4. the Division of Metals, Korea Institute of Science and Technology, 130-650, Seoul, Korea

    Ho-In Lee

Authors
  1. Hyun-Kwang Seok
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  2. Kyu Hwan Oh
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  3. Hyung Yong Ra
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  4. Dong-Hun Yeo
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  5. Ho-In Lee
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Seok, HK., Oh, K.H., Ra, H.Y. et al. A three-dimensional model of the spray forming method. Metall Mater Trans B 29, 699–708 (1998). https://doi.org/10.1007/s11663-998-0105-z

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  • DOI: https://doi.org/10.1007/s11663-998-0105-z

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