MULTI-OBJECTIVE OPTIMIZATION FOR DESIGN OF GATING SYSTEM PARAMETERS OF ALUMINIUM METAL CASTING USING WEIGHTED SUM METHOD
Keywords:
Taguchi method, Computational simulation, Optimization, Gating system , Aluminium CastingAbstract
An optimization technique for design of gating system parameters of a cylindrical aluminum casting based on the Taguchi method is proposed in this paper. The various gating systems for a casting model of aluminum are designed. Mould filling and solidification processes of the Aluminum casting were simulated with the PROCAST, AUTOCAST, and MAGMASOFT etc. The simulation results indicated that gating system parameters significantly affect the quality of the Aluminum casting. In an effort to obtain the optimal process parameters of gating system, an orthogonal array, the signal-to- noise (S/N) ratio, and analysis of variance (ANOVA) were used to analyze the effect of various gating designs on cavity filling and casting quality using a weighting method.
Downloads
References
Campbell J (1998), “The Ten Castings Rules Guidelines for the Reliable Production of Reliable Castings: A Draft Process Specification”. In: Materials Solutions Conference on Aluminium Casting Technology, Chicago, 3-19.
Green N R and Campbell J (1994), “Influence of Oxide film filling Defects on the Strength of Al–7Si–Mg Alloy Castings”, AFS Trans.102, 341-347.
Hu H and Yu A (2002), “Numerical Simulation of Squeeze Cast Magnesium Alloy AZ91D”, Modeling and Simulation in Material Science and Engineering, Vol. 10, 1-11.
Ravi B (2009), “Computer-Aided Casting Design and Simulation”, STTP, V.N.I.T. Nagpur.
Bradley F and Heinemann S (1993), “A Hydraulics-Based Optimisation Methodology for Gating Design”, Applied Mathematical Modeling, Vol. 17, 406-414.
McDavid R M and Dantzig J A (1998), “Design Sensitivity and finite Element Analysis of Free Surface flows with Application to Optimal Design of Casting Rigging System”, International Journal of Numerical Methods in Fluids, Vol. 28.
McDavid R M and Dantzig J A (1998), “Experimental and Numerical Investigation of Mould filling”, Modeling of Casting, Welding and Advanced Solidification Processes (MCWASP VIII), Chicago, USA, 59-66.
Byrne D M and Taguchi S (1987), “The Taguchi Approach to Parameter Design” Quality Progress, pp. 19-26.
Taguchi G (1998), “Introduction to Quality Engineering”, McGraw-Hill, New York.
Montgomery D C (1999), “Design and Analysis of Experiments”, Wiley, Singapore.
