Treatment of details with different outward profile by close-settled polishing material

Introduction. The article deals with the treatment of different surfaces of details by unsupported polishing material. High efficiency of finish treatment of rotating body type details with difficult profile can be attained by treatment of details unsupported polishing material close-settled in a chamber static pressure of the compressed air through an elastic shell. The study of treatment quality of disks and fists was conducted in the experimental installation. Materials and Methods. The workpieces were installed in a special frame with eccentricity in the spindle setup on the basis of the vertical or radial drilling machine. The camera reciprocating movement at a certain speed and amplitude. One of the main characteristics of the dynamic of processing pieces in the sealed environment is the fluid pressure on the workpiece surface by the elastic membrane. To solve the problem of elasticity equations were used in the first approximation. Results. The author came from terms at the calculations that an abrasive environment is able limit equilibrium. The mathematical models are driven on determination of pressure of close-settled abrasive environment on a surface processed of details and cutting speeds. The schematics of methods of treatment and results of practical realization of finish treatment are presented with the purpose of achievements of the set size of roughness of the processed surfaces. Discussion and Conclusions. The research have shown that the processing of parts rotating with planetary polishing process stable flow is provided under the condition that a portion of the workpiece surface deviation from circularity is able to communicate with the densified abrasive medium at least during the time necessary for a complete rotation about a central axis of the rotor. During this time the compacted abrasive media has time to react to the changing shape of the part profile.