Author(s)

Juxia Xiong, Jinzhao Wu

Corresponding Author

Juxia Xiong

Abstract

Ultra precision machining is one of the main research contents of cutting-edge manufacturing technology. According to the theory of neutrino mechanics, the scale effect of materials at the scale of method is investigated. The ultra precision machining technology is studied by using molecular dynamics and finite element simulation technology, and the surface is measured and analyzed. Molecular dynamics is an important tool for nanofabrication. The molecular dynamics simulation model of diamond tool cutting for monocrystal silicon processing products is established, and the structure formed on the chip and surface of monocrystal silicon is established. The simulation is carried out when the formation depth and tool shape angle change. Material structure relationship and minimum cutting thickness are the theoretical basis of ultra precision machining. In this paper, the method of considering the scale effect is established, and the analytical formula of the minimum cutting thickness is derived. On this basis, the change of material stress, deformation and the minimum cutting thickness in ultra precision machining are studied. The results of this study show that the existing structural relationships well reflect the scale effect of material properties. The scale effect of material characteristic curve increases with the decrease of cutting depth, rake angle and cutting edge radius, while the friction coefficient decreases with the decrease of cutting depth, rake angle and cutting edge radius.

Keywords

Computer Control, Ultra Precision Machining, Algorithm Research