Author Affiliations
Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, Sichuan 621900, Chinashow less
Fig. 1. Morphology of removal function generated by normal fixed-point incidence modes. (a) Vertical incidence; (b) oblique incidence
Fig. 2. Schematic of principle. (a) Rotary sweeping under oblique incidence; (b) material removal
Fig. 3. Spot-taking results at fixed point under different incidence angles. (a) 75°; (b) 60°; (c) 45°
Fig. 4. Schematic of material removal under oblique incidence for intersection point at different positions. (a) Beneath workpiece surface; (b) on workpiece surface; (c) above workpiece surface; (d) above workpiece surface and no overlap of material removal
Fig. 5. Schematic of rotary sweeping method used for calculating material removal profile
Fig. 6. Semi-profiles. (a) Rotational axis at O; (b) rotational axis at O1; (c) rotational axis at O2; (d) rotational axis at O3; (e) rotational axis at O4; (f) rotational axis at O5
Fig. 7. Structural diagram of jet nozzle
Fig. 8. Adjustment for position and angle of jet nozzle
Fig. 9. Results of surface shape measurement of spot-taking workpiece
Fig. 10. Surface shapes and intersection profiles of different spots. (a) No. 1; (b) No. 2; (c) No. 3; (d) No. 4; (e) No. 5; (f) No. 6; (g) No. 7; (h) No. 8; (i) No. 9
Fig. 11. Comparison among intersection profiles of spot No. 6 along different directions. (a) Position diagram; (b) profile
Fig. 12. Straight groove processed based on the corresponding parameters of spot No. 6 (a) Two-dimension; (b) three-dimension
Fig. 13. Comparison among intersection lines at different positions of straight groove. (a) Position diagram; (b) section line
Parameter | Content |
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Base fluid | Deionized water | Type of abrasive | CeO2 | Mass fraction of slurry /% | 8 | Jet pressure /MPa | 1 | Fluctuation of pressure | <±1% | Jet angle /(°) | 45 | Diameter of jet hole /mm | 1 | Initial nozzle height /mm | 10 | Dwelling time for each spot t /s | 60 | Rising height for each spot Δh /μm | 50 | Size of workpiece /(mm×mm×mm) | 20×20×10 | Height difference Δz /mm | 41.968 |
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Table 1. Parameters for multi-spot-taking experiment