Longhai Yin, Yanwei Li, Junchi Li, Xin Li, He Huang, Xinwang Xie, Shengtao Fang, Binzhi Zhang. Ultra-precision milling technology of large-aperture ultra-lightweight SiC mirror (invited)[J]. Infrared and Laser Engineering, 2023, 52(9): 20230270
- Infrared and Laser Engineering
- Vol. 52, Issue 9, 20230270 (2023)
Fig. 1. Schematic diagram of oblique axis milling
Fig. 2. Tool motion trajectory diagram
Fig. 3. Lightweight structure on the back of the reflector
Fig. 4. Plot of the ratio between dynamic displacement response and static displacement
Fig. 5. Location selection of simulation milling points
Fig. 6. Simulation results of milling stress
Fig. 7. Assembly diagram of tooling and reflector
Fig. 8. The first six modal analysis nephogram of the system
Fig. 9. Physical picture of five axis machining center
Fig. 10. Processing site diagram
Fig. 11. Surface profile of the mirror
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Table 1. Ultimate pressure at different radial positions
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Table 2. The first six modal analysis results of the system
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Table 3. Main parameters of milling
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