Abstract
Generally, optical parts are demanded of reduction for optical aberration, scattering or diffraction light, since information appliances are advanced features and high-performance. Laser printer is used many scanning optical parts, such as a polygon mirror and a photo sensitive drum. In order to reduce the faults of these optical parts, it is necessary to improve geometric surface roughness, decrease tear-out marks and scratch marks which are generated at ultra-precision cutting of aluminum alloy. Conventionally, ultra-precision cutting of flat and cylindrical parts are used straight diamond tool which is in the inclined state. However this machining method is difficult because of tool setting angle is very small range which can obtain a mirror surface. Therefore, in order to expand the tool setting angle range, the facet front edge was added to the straight tool. This study considered reduction of the surface faults of aluminum alloy when using ultra-precision cutting with a double facet tool.
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