FIELD: machine building.
SUBSTANCE: method is implemented by means of single mandrels with increasing diameter successive pushing through hollow cylinder hole. At that, in successive following groups of two mandrels average tensions on each of them are accepted as identical, and processing with said mandrels is performed at hollow cylinder locating on different ends.
EFFECT: enabling higher accuracy of hollow cylinders hole and outer surface.
1 cl, 1 tbl, 4 dwg
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