1 Introduction
2 Theoretical Analysis and Modeling
2.1 Cutting Velocity Analysis of Sand Mould
2.2 Deformation Analysis of Cutting Sand Mould
2.3 Constitutive Equation of Cutting Sand Mould
2.4 Cutting Force Calculation for Milling Sand Mould
3 Experimental Verification
Parameter | Value |
---|---|
Critical volume fraction Cvr | 0.64 |
Static internal friction angle \(\phi\)0 (°) | 26.33 |
Density ρp (kg/m3) | 2600 |
Mean diameter d (mm) | 0.144 |
Shear angle \(\phi\) (°) | 31.84 |
Axial compression strength σs (MPa) | 16.5 |
Frictional angle between rake face and sands β (°) | 10 |
Parameter | Value |
---|---|
Rake angle γ0 (°) | 0 |
Teeth number | 2 |
Radius of cutter R (mm) | 8 |
Helical angle (°) | 0 |
Flank angle α0 (°) | 20 |
Milling condition | Test number | |||
---|---|---|---|---|
Test A | Test B | Test C | Test D | |
ap (mm) | 3 | 3 | 3 | 5 |
n (r/min) | 6000 | 6000 | 9000 | 6000 |
vX (mm/s) | 100 | 160 | 100 | 100 |
ae (mm) | 14.4 | 14.4 | 14.4 | 14.4 |