A study of the ultra-precision truing method for flank face of round nose diamond cutting tool

Round nose diamond cutting tool lapping is a key technology in ultra-precision turning technology which is a promising technique widely used in micro- and nano-cutting in various industrial sectors. So far, manual operation with sufficient experience is still irreplaceable for lapping process of high precision diamond cutting tools. In this work, a truing method based on the tiny wear loss measurement on the flank face of round nose diamond cutting tool is presented. The tiny wear loss measuring results provide a reference for truing process of round nose diamond cutting tool. Based on our method, the finished profile of flank face with Pv = 78.2 nm and Pa = 21.4 nm is obtained easily and deterministically.