반응고 주조공정에서 평면도 증대를 위한 공정변수의 최적설계

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 AnyCasting Inc., "viewed 6 October 2008"

2 Wu, D. H., "Use of Taguchi Method to Develop a Robust Design for the Magnesium Alloy Die Casting Process" 379 : 366-371, 2004

3 Tang, S. H., "The Use of Taguchi Method in the Design of Plastic Injection Mold for Reducing Warpage" 182 : 418-42612, 2007

4 Fan, Z., "Semi-solid Metal Processing" 47 (47): 49-85, 2002

5 Spencer, D. B., "Rheological Behavior of Sn-15%Pb in the Crystallization Range" 3 : 1925-1932, 1972

6 EI-Mahallawy, N. A., "On the Influent of Process Variables on the Thermal Condition and Properties of High Pressure Die-cast Magnesium Alloys" 73 : 125-138, 1998

7 Wang, Y. C., "Numerical Simulation of Low Pressure Die Casting of Magnesium Wheel" 32 : 257-264, 2007

8 Park, S.H., "Modern Design of Experiments" Minyoungsa 2001

9 Avedesian M. M., "Magnesium and Magnesium Alloys (ASM Specialty Handbook)" ASM International 1999

10 Kainer, K. U., "Magnesium Alloys and Technology" WILEYVCH GmbH & Co.KGaA 2003

11 Sin, S. L., "Influence of Process Parameters on Fluidity of Investment-cast AZ91D Magnesium Alloy" 386 : 34-42, 2004

12 Syrcos, G. P., "Die Casting Process Optimization using Taguchi Method" 135 : 68-74, 2003

13 Kwon, T. H., "A Study on the Design of Gating System for Semi-solid Diecasting Process" 19 (19): 116-125, 2002

14 Han, S. H., "A Study of Rheology Die-casting Moulding by using Mg Alloy" 257-260, 2006