Analysis of Machining Parameters in WEDM of Al/SiCp20 MMC Using Taguchi-Based Grey-Fuzzy Approach

Table 1

Properties of base metal Al 2124.

Chemical composition
Element	Al	Cu	Mg	Mn
Content (%)	93.50	4.4	1.5	0.6
Physical properties
Properties	Density (kg/m^3)		Melting point (°C)
Value	2770		510
Thermal properties
Properties	Constant accounts for thermal conductivity (W/mK)		Coefficient of thermal expansion (10^−6 (°C))
Value	190		22.8
Mechanical properties
Properties	Elastic module (Gpa)		Poisson ratio
Value	70–80		0.33