Optimization of AZ80 magnesium alloy squeeze cast process parameters using morphological matrix

Abstract The squeeze cast process parameters of AZ80 magnesium alloy were optimized by morphological matrix. Experiments were conducted by varying squeeze pressure, die pre-heat temperature and pressure duration using L 9 (3 3 ) orthogonal array of Taguchi method. In Taguchi method, a 3-level orthogonal array was used to determine the signal/noise ratio. Analysis of variance was used to determine the most significant process parameters affecting the mechanical properties. Mechanical properties such as ultimate tensile strength, elongation and hardness of the components were ascertained using multi variable linear regression analysis. Optimal squeeze cast process parameters were obtained.

[1]  M. S. Yong,et al.  EVALUATION OF SQUEEZE CAST MAGNESIUM ALLOY AND COMPOSITE , 1999 .

[2]  Dezhi Zhu,et al.  Thermal expansion and mechanical properties of high reinforcement content SiC p /Cu composites fabricated by squeeze casting technology , 2009 .

[3]  M. S. Yong,et al.  Process optimisation for a squeeze cast magnesium alloy , 2004 .

[4]  T. R. Vijayaram,et al.  Fabrication of fiber reinforced metal matrix composites by squeeze casting technology , 2006 .

[5]  Weiweng Zhang,et al.  Effect of pressure on microstructures and mechanical properties of Al-Cu-based alloy prepared by squeeze casting , 2007 .

[6]  M. Alauddin,et al.  Computer-aided analysis of a surface-roughness model for end milling , 1995 .

[7]  E. Besada-Portas,et al.  Multiobjective optimization and multivariable control of the beer fermentation process with the use of evolutionary algorithms , 2004, Journal of Zhejiang University. Science.

[8]  G. A. Chadwick,et al.  High quality squeeze casting of monlithic and of reinforced aluminium alloys , 1991 .

[9]  T. P. D. Rajan,et al.  Studies on squeeze casting of Al 2124 alloy and 2124-10% SiCp metal matrix composite , 2008 .

[10]  Kyuhong Lee,et al.  Effects of eutectic silicon particles on tensile properties and fracture toughness of A356 aluminum alloys fabricated by low-pressure-casting, casting-forging, and squeeze-casting processes , 2008 .

[11]  Yan-hua Bai,et al.  Effect of specific pressure on microstructure and mechanical properties of squeeze casting ZA27 alloy , 2010 .

[12]  Hong Hocheng,et al.  Taguchi analysis of delamination associated with various drill bits in drilling of composite material , 2004 .

[13]  Johan Ölvander,et al.  A computerized optimization framework for the morphological matrix applied to aircraft conceptual design , 2009, Comput. Aided Des..