The basic principle and algorithm of molecular dynamics simulation are introduced, and the applications of molecular dynamics in the study of cutting mechanism of single point diamond ultra precision turning in oversea are summarized.

Generation of surface micro-topography in diamond turning;

The machining accuracy is always impacted by the thermal deformation of the cutting tools in the diamond turning of the large metallic mirrors.

Although many organizations have carried out some research in DOEs in this nation, fewer applications are found in the visible spectrum with single point diamond turning.

Presents a new two axis double frequency laser interferometric measuring system developed for on line position measurement on an ultra precision diamond turning machine, in which a double frequency interferometric measuring instrument is used for distance measurement, a data collecting system, a high speed data communicating system, and an air parameters error compensating system are included.