Optimization of low-pressure die casting process parameters for reduction of shrinkage porosity in ZL205A alloy casting using Taguchi method

Autor:	Niu Lianjie, WU Shiping, Xue Xiang, Xiao Wenfeng, Zhang Jianbing, Wang Ye
Rok vydání:	2014
Předmět:	Materials science Mechanical Engineering Design of experiments Metallurgy Alloy engineering.material Shrinkage porosity Industrial and Manufacturing Engineering Taguchi methods Casting (metalworking) Scientific method engineering Composite material Reduction (mathematics) Pressure die casting
Zdroj:	Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 228:1508-1514
ISSN:	2041-2975 0954-4054
DOI:	10.1177/0954405414521065
Popis:	In order to reduce serious tendency of the shrinkage porosity in ZL205A alloy, the design of experiment technique, Taguchi method is introduced to optimize the process parameters of cylindrical shell ZL205A alloy parts produced by low-pressure die casting in this article. The effect of pouring temperature, filling time and packing pressure on the shrinkage porosity in ZL205A castings is investigated using the orthogonal array and Advanced Porosity Model in ProCAST to calculate the volume of shrinkage porosity. The effectiveness of selected casting parameters in reducing the shrinkage porosity in cylindrical shell ZL205A casting is verified through analysis of signal-to-noise ratio and analysis of variance. Numerical results indicate that the optimized process parameters, including a pouring temperature of 725 °C, filling time of 20 s and packing pressure of 175 kPa, can be used to reduce the formation of shrinkage porosity in ZL205A castings.
Databáze:	OpenAIRE
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