Ultra precision cutting of single crystal materials with diamond fly cutting

Abstract

In this report, ultra precision cutting of hard and brittle materials with diamond fly–cutting tool was newly proposed. In the proposed fly cutting method, the real depth of cut is much smaller than the apparent depth of cut. Therefore total cutting time can be reduced. And secondly, tool is rotating and then, workpiece form accuracy is independent of tool roundness and high accuracy could be obtained. Thirdly, interrupted cutting makes the tool edge temperature lower and tool wear will be reduced. Then large aspherical lenses of hard and brittle materials can be cut ultra precisely and efficiently.