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金刚石的精密加工与常规的机械加工的差别在于采用金刚石单刃刀具,可在工件上加工出光学质量的表面。在典型的情况下,表面可加工到均方根粗糙度优于50的光洁度。其所以能达到这样的精度,在于单晶金刚石切削刀具具有极高的硬度和极低的磨损率。它的切削刃还能刃磨到其它材料的刀具不可能达到的精确度。这种机械加工方法也可用来加工平直度、垂直度、平行度或同心度要求很高的其它零件。据科鲁
The difference between precision machining of diamond and conventional machining is the use of diamond single-edged tools to produce optically-quality surfaces on the workpiece. In the typical case, the surface can be machined to a finish of better than 50 with root mean square roughness. So it can achieve such precision is that single-crystal diamond cutting tools with high hardness and low wear rate. Its cutting edge can also be sharpened to other materials can not achieve the accuracy of the tool. This machining method can also be used to machine flatness, verticality, parallelism or concentricity demanding other parts. According to Cluj