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http://dx.doi.org/10.7777/jkfs.2017.37.6.181

Effect of Critical Cooling Rate for Minimization of Porosity in the Thick Aluminum Casting  

Kwak, Si-Young (Cyber Manufacturing Process Group, Korea Institute of Industrial Technology (KITECH))
Cho, In-Sung (Cyber Manufacturing Process Group, Korea Institute of Industrial Technology (KITECH))
Kim, Yong-Hyun (Daeshin Metals. Co., Ltd.)
Lee, Hee-Kwon (Daeshin Metals. Co., Ltd.)
Publication Information
Journal of Korea Foundry Society / v.37, no.6, 2017 , pp. 181-185 More about this Journal
Abstract
In the present study, the effect of cooling rate on the formation of the porosity in the thick aluminum sand casting was investigated. Nowadays, due to considerations of weight and cost reduction, large scale thick aluminum casting has replaces steel frames for vacuum chambers for semiconductor production. Several thick aluminum castings were manufactured using chill with temperature measurements. The castings were inspected using 3D computed tomography in order to quantify the porosity defect density in the castings. Effects of the thickness of the chill on the porosity defect density were discussed.
Keywords
Porosity; Cooling rate; Aluminum casting; Vacuum chamber; Computed tomography; Chill;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Kim YH, Project supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) "Development of large-scale high-quality aluminum sand casting technology", (2016-2018).
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