Processing Four-Surface Mirror Drum With Single Point Diamond Fly-Cutting

In this paper, the single point diamond fly-cutting (SPDF) method, which is applied during processing mirror drum, is mainly studied, and some related experiments are conducted. The method of processing four-surface mirror drum, made of aluminum alloy, is confirmed, in the meanwhile, specifications are tested such as the surface shape and the angle between neighboring mirrors. The result shows that the value of PV distributes 0.2 similar to 0.75 mu m, and the value of angle error, tower error and roughness Rq reaches 5 '', 10 '', and 0.008 mu m respectively.