FIELD: machine building.
SUBSTANCE: invention relates to machine building and can be used for finishing inner surfaces of steel nitrided sleeves of internal combustion engines. Method includes air-vibration-dynamic treatment of inner surface of sleeve, before which it is nitrided with hardness of surface layer of up to 60 HRC and subsequent honing with roughness Ra of not more than 0.5 mcm. Pneumatic vibration-processing is performed with provision of roughness Ra not more than 0.2 mcm at supply Smin Pneumatic ball-type centrifugal pump, to which air is supplied by pneumatic system. Feed Smin is not more than 250 mm/min, and air pressure in pneumatic system P is not more than 0.6 MPa.
EFFECT: as a result, processing labour intensity is reduced and wear resistance and qualitative characteristics of the surface are increased.
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