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Optimal Design of Process Parameters for Flatness Improvement in Semi-Solid Casting Processes  

Kim, Hyun-Goo (한양대학교 기계공학과)
Chung, Sung-Chong (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.6, 2008 , pp. 28-34 More about this Journal
Abstract
Mg alloy is widely used for the IT, auto and consumer electronics industries. Semi-solid casting(SSC) of magnesium alloys is used to produce high quality components. SSC process is analogous with the injection molding of plastics. The high strength and low weight characteristics of magnesium alloys render the high-precision fabrication of thin-walled components with large surface areas. To produce thin-walled magnesium alloy parts, SSC process parameters on the quality of the finished product should be clearly studied. In this paper, to select optimal process parameters, Taguchi method is applied to the optimal design of the process parameters in the SSC process. The die temperature, injection velocity and barrel temperature of the SSC process are selected for the process parameters. The effectiveness of the optimal design is verified through the CAE software.
Keywords
CAE simulation; Rheocasting; Semi-solid casting; Taguchi method; Thixomolding; Warpage;
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1 Wang, Y. C., Li, D. Y., Peng, Y. H., and Zeng, X. Q., 2007, "Numerical Simulation of Low Pressure Die Casting of Magnesium Wheel," International Journal of Advanced Manufacturing Technology, Vol. 32, pp. 257-264   DOI
2 Kainer, K. U., 2003, Magnesium Alloys and Technology, WILEYVCH GmbH & Co.KGaA, New York, USA
3 Kwon, T. H., Moon, C. K., Kim, Y. H., and Choi, J. C., 2002, "A Study on the Design of Gating System for Semi-solid Diecasting Process," Journal of the Korean Society of Precision Engineering, Vol. 19, No. 8, pp. 116-125
4 Spencer, D. B., Meharabian, R., and Flemings, M. C., 1972, "Rheological Behavior of Sn-15%Pb in the Crystallization Range," Metallurgical and Materials Transactions B, Vol. 3, pp. 1925-1932   DOI
5 Avedesian M. M. and Baker H., 1999, Magnesium and Magnesium Alloys (ASM Specialty Handbook), ASM International, New York, USA
6 Syrcos, G. P., 2003, "Die Casting Process Optimization using Taguchi Method," Journal of Materials Processing Technology, Vol. 135, pp. 68-74   DOI   ScienceOn
7 Tang, S. H., Tan, Y. J., Sapuan, S. M., Sulaiman, S., Ismail, N., and Samin, R., 2007, "The Use of Taguchi Method in the Design of Plastic Injection Mold for Reducing Warpage," Journal of Materials Processing Technology, Vol. 182, pp. 418-426   DOI   ScienceOn
8 Han, S. H., Kang, C. G., and Sung, S. J., 2006, "A Study of Rheology Die-casting Moulding by using Mg Alloy," Proceeding of Korean Society for Precision Engineering, pp. 257-260
9 EI-Mahallawy, N. A., Taha, M. A., Pokora, E., and Klein, F., 1998, "On the Influent of Process Variables on the Thermal Condition and Properties of High Pressure Die-cast Magnesium Alloys," Journal of Materials Processing and Technology, Vol. 73, pp. 125-138   DOI   ScienceOn
10 Sin, S. L. and Dube, D., 2004, "Influence of Process Parameters on Fluidity of Investment-cast AZ91D Magnesium Alloy," Material Science and Engineering A, Vol. 386, pp. 34-42   DOI
11 AnyCasting Inc., viewed 6 October 2008,
12 Park, S.H., 2001, Modern Design of Experiments, Minyoungsa, Seoul, Korea
13 Wu, D. H. and Chang, M. S., 2004, "Use of Taguchi Method to Develop a Robust Design for the Magnesium Alloy Die Casting Process," Materials Science and Engineering A, Vol. 379, pp. 366-371   DOI   ScienceOn
14 Fan, Z., 2002, "Semi-solid Metal Processing," International Materials Reviews, Vol. 47, No. 2, pp. 49-85   DOI   ScienceOn