Material properties of Tungsten Carbide Tool and AA2024 workpiece .
|Physical parameter||Tool (Tungsten Carbide insert)||Workpiece (AA2024)|
|Expansion, α (mm−1°C−1)||–||α + 8.9 × 10−3 T + 2.2|
|Density, ρ (kg/m3) at 25 °C||11 900||2700|
|Specific heat, Cp (T) (Jkg−1°C−1)||400||Cp = 0.557 T + 877.6|
|Poisson ratio, ν||0.22||0.33|
|Thermal conductivity λ (T) (Wm−1C−1)||50||25 ≤ T ≤ 300: λ = 0.247T + 114.4
300 ≤ T ≤ Tmelt: λ = −0.125T + 226.0
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