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PMMA (Polymethyle-methacrylate) optical components have recently been increasingly used as one of the important part of the high precision equipments. This research presents comparatively the surface preparation of light incident plane, LIP (Light Incident Plane) of LGP (Light Guide Panel) by end milling, high speed shaping, and vibration assisted high speed shaping. From several experiments, the results show that the surface quality was improved in high speed shaping and the vibration assisted HSS show not only decreasing waviness and breakage also raising the straightness property. For applying high speed shaping and vibration assisted HSS, an additional tool post was developed and experimentally used.   (PMMA).TV,,      (LightGuidePanel)        .PMMA ,.PMMA .PMMA ,.                 1.0~6.0μm, 0.3μm .

Experimental Cutting Performance Evaluation of LGP using Vibration Assisted High Speed Shaping