Open Access
Table 1
Material properties of Tungsten Carbide Tool and AA2024 workpiece [18].
| Physical parameter | Tool (Tungsten Carbide insert) | Workpiece (AA2024) |
|---|---|---|
| Tmelt (°C) | – | 520 |
| Troom (°C) | 25 | 25 |
|
– | 26 |
|
|
– | 37 |
| 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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