Technological Support of Surface Layer for Optical Metalware

Abstract

In the article the justification of the parameters of the polishing regimes in the processing of surfaces of parts with the purpose of smoothing their surface layer. The procedure was developed calculating the time of the whole process of processing parts made of copper and aluminum, the time of each transition and the grain size of the abrasive at each transition. The paper considers the issues of technological support for smoothing the surface layer of optical metal products under conditions of abrasive polishing. A significant effect of processing time on the surface roughness parameters has been established. Proceeding from this, it was proposed that abrasive polishing be carried out in several technological transitions, reducing the granularity of the abrasive at each transition, up to a grain size of 1/0. The minimum number of transitions of the technological cycle is established to obtain the minimum values of the height parameters of surface roughness. It is shown that the stabilization time of the formation of the altitude parameter of surface roughness depends little on the granularity of the abrasive, and is determined by the initial surface roughness before processing. A technique has been developed for calculating the time of the entire process of processing parts made of copper and aluminum to obtain a mirror surface, the number of transitions, the time of each transition and the grain size of the abrasive at each transition. The results of the work can be used for abrasive polishing of surfaces of laser mirrors with high reflectivity and surfaces of parts operating under conditions of light exposure in outer space.