Infrared and Laser Engineering, Volume. 52, Issue 7, 20220898(2023)
Grinding simulation and process optimization method of tungsten carbide alloy
Figures & Tables(18)
Fig. 1. Setting windows for （a） constitutive model and （b） Johnson-Cook separation criterion
Fig. 4. Trend diagram of surface node displacement with sampling distance
Fig. 7. Variation trend of surface roughness with grinding wheel speed
Fig. 10. Main effect diagram of mean surface roughness of tungsten carbide alloy element
Fig. 11. Grinding results. (a) Aspherical core; (b) Surface roughness test diagram about 0.5 mm from the center of the core; (c) Surface roughness test diagram about 4.5 mm from the center of the core
Table 1. Parameters of Johnson-Cook constitutive model for WC-6%Co tungsten carbide alloy
View tableView in ArticleTable 1. Parameters of Johnson-Cook constitutive model for WC-6%Co tungsten carbide alloy
$A/{\rm{GPa}}$ $B/{\rm{GPa}}$ $C$ $m$ $n$ ${T_{{r} } }/{\rm{K} }$ ${T_{{m} } }/{\rm{K} }$ 3.0 89.0 0.0 1.0 0.65 293.15 1768
Table 2. Failure strain parameters of WC-6%Co tungsten carbide alloy material
View tableView in ArticleTable 2. Failure strain parameters of WC-6%Co tungsten carbide alloy material
$ {d_1} $ $ {d_2} $ $ {d_3} $ $ {d_4} $ $ {d_5} $ 0.0 0.0019 −3.0 0.0 0.0
Table 3. Performance parameters of WC-6%Co tungsten carbide alloy workpiece
View tableView in ArticleTable 3. Performance parameters of WC-6%Co tungsten carbide alloy workpiece
Material properties Value Density/kg·m−3 14770 Young’s modulus/GPa 620 Shear modulus/GPa 255 Poisson’s ratio 0.215 Specific heat/J·(kg·K)−1 250 Thermal conductivity/W·mK−1 95
Table 4. Process parameters of simulation
View tableView in ArticleTable 4. Process parameters of simulation
Parameter Value ap/μm 1, 1.4, 1.8, 2.2, 2.6 Vf/mm·min−1 0.5, 1, 1.5, 2 n1/r·min−1 25000, 30000, 35000, 40000 n2/r·min−1 100, 200, 300, 400
Table 5. Control factors and level of orthogonal grinding experiment
View tableView in ArticleTable 5. Control factors and level of orthogonal grinding experiment
Control factors Factor 1 Factor 2 Factor 3 ap/μm 1 1.4 1.8 Vf/mm·min−1 0.5 1 1.5 n2/r·min−1 100 200 300
Table 6. Orthogonal experimental data of tungsten carbide alloy elements
View tableView in ArticleTable 6. Orthogonal experimental data of tungsten carbide alloy elements
No. ap/μm Vf/mm·min−1 n2/r·min−1 Ra/nm 1 1 0.5 100 5.121 2 1 1 200 3.166 3 1 1.5 300 4.517 4 1.4 0.5 200 8.189 5 1.4 1 300 9.864 6 1.4 1.5 100 12.376 7 1.8 0.5 300 14.493 8 1.8 1 100 13.556 9 1.8 1.5 200 16.083
Table 7. Parameters of the designed aspherical core
View tableView in ArticleTable 7. Parameters of the designed aspherical core
Parameter Value c/mm−1 0.066646 k 0 a4 −4.541281×10−8 a6 2.553217×10−10 a8 3.008794×10−11
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Bo Yin, Changxi Xue, Chuang Li. Grinding simulation and process optimization method of tungsten carbide alloy[J]. Infrared and Laser Engineering, 2023, 52(7): 20220898
Paper Information
Category: Optical fabrication
Received: Dec. 27, 2022
Accepted: --
Published Online: Aug. 16, 2023
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