| With the development of science and technology, large plane optical glass components over lm in Diagonal length components are in great demand. The conventional optically manufacturing method can’t satisfy the processing efficiency and the machined surface quality requirements.Therefore, studying on new kind of high-efficiency and high-accuracy processing method is in urgent need.Controllable slurry polishing is a new optical precision processing method, it control abrasive jet machining process of the work piece surface through high-speed polishing tool, it Make the surface of work piece materials evenly remove to get preferable surface quality with higher polishing efficiency. The major research efforts include the following points.1. Expounds the optical glass polishing mechanism Based on theories of abrasive jet polishing and elastic emission machining. Study the pressure distribution of flow field. The effect of some main parameters on the material removal efficiency and Surface roughness in polishing process is researched.2. Based on the CCOS principle and its requirements, a controllable abrasive jet polishing system is designed through Scheme comparison method. A differential type slurry system is manufactured on the basis of General cylindrical grinder and the electro-hydraulic control system is build by PLC. The whole system reaches the design function and using standard after Debugging,3. Blank pre-shape sample Optical glass polishing is studied the preparation method of the substrate, and analyzes the effects of various parameters on the grinding. 4. With the discussions above, application experiments for controllable slurry polishing technology are carried out. Micro circular plane mirror with the diameter of80mm is polished, and the experiments indicate that this polishing method has a high form error convergence ratio. The experiments reveal that controllable slurry polishing is a promising technique in high precision mirror correcting figure process. |
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