Abstract
Optical scanning parts that reduce optical aberration, scatter, and diffraction are required in laser printers. It is necessary to improve the geometric surface roughness achieved in mirror cutting of Al alloys, and to remove tear-out marks and scratch marks that occur during the cutting process. Therefore, we investigated the cutting edge shape using a straight diamond tool to decrease surface defects during ultra-precision cutting of Al alloys. We obtained the result that when the feed rate is 100μm/rev using the improved triple-facet tool, we can achieve a good machined surface without scratch marks and tear-out marks.
