关键词: 机械制造工艺与设备, 研抛加工, 液流悬浮, 去除机理, 塑性去除

Abstract: Based on the research of the finishing machining process of the surface,a new polishing technique,the hydrodynamic suspension polishing was proposed.A hydrodynamic suspension test system based on a threecoordinates NC milling machine was developed and the polishing experiment was performed on the optical glass(K9). The polishing process was analyzed and the removal mechanisms of the brittle material were discussed.It is found that the surface roughness is reduced by the plastic deformation and plastic removal under the impacting and shearing of the abrasive.The results show that the polishing by the hydrodynamic suspension with colloided SiC nanoabrasive is valid for the nano meter cutting and the nanometer supersmooth surface processing.

Key words: mechanical manufacture technique and equipment, polishing, hydrodynamic suspension, removing mechanism, plastic removal