Effect of cooling rate on the porosity defect in the thick aluminum casting by 3D computed tomography analysis

Joint 5th International Conference on Advances in Solidification Processes;5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining

土木建筑工程;计算机科学

Cho, I.S.^1 ; Kwak, S.Y.^1 ; Kim, Y.H.^2 ; Lee, H.K.^2 ; Yoo, S.M.^1

Korea Institute of Industrial Technology, 156 Gaetbeol-ro, Yeonsu-gu, Incheon

21999, Korea, Republic of^1

Daeshin Metals. Co., Ltd., 24-11 Pallyong-dong, Changwon-si, Gyeongsangnam-do, Korea, Republic of^2

关键词: 3d computed tomographies;    Cooling rates;    Porosity defects;    Sand castings;    Semiconductor production;    Steel frame;    Vacuum chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/529/1/012057/pdf
DOI  :  10.1088/1757-899X/529/1/012057

来源: IOP

【 摘 要 】

In the present study, effect of cooling rate on the formation of the porosity in the thick aluminum sand casting was investigated. Nowadays large scale thick aluminum casting replaces steel frame for vacuum chamber for semiconductor production, with the consideration of weight and cost reduction. Several thick aluminum castings were manufactured using chill with temperature measurements. The castings were inspected by using 3D computed tomography in order to quantify the porosity defect density in the castings. Effect of the thickness of the chill on the porosity defect density were discussed.