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http://dx.doi.org/10.7777/jkfs.2012.32.1.024

Fabrication of Thin Plate of Semisolid Material using Slope Plate Process and Development of Fabrication Apparatus  

Koo, Ja-Yoon (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University)
Bae, Jung-Woon (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University)
Jin, Chul-Kyu (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University)
Kang, Chung-Gil (Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University)
Publication Information
Journal of Korea Foundry Society / v.32, no.1, 2012 , pp. 24-31 More about this Journal
Abstract
In this study, semi-solid thin plate of A 356 aluminum alloy was fabricated by using slope plate apparatus and vacuum pressurization. Slope plate was used to produce semi-solid material with spheroidal microstructures. After molten metal was poured into the slope plate connected to the pouring hole of die, semi-solid material flowed into the die cavity by vacuum degree. The primary crystals of the cast metal became spheroidal. In order to increase the working pressure, gas pressurization of U shape was designed for fabrication of thin plate. For 3 bar of gas pressure and 60 mmHg of vacuum degree, thin plate was fabricated without defects on surface.
Keywords
Slope plate; Vacuum pressurization; Bipolar plate; Semi-solid; A356 alloy;
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