METHOD OF FINISHING TREATMENT Russian patent published in 1999 - IPC

FIELD: mechanical engineering. SUBSTANCE: finishing treatment is performed by means of abrasive bars secured in tool head. Part rotation axis and tool head axis are positioned at acute angle. Tool head is driven to circular oscillatory motion around point positioned in plane of symmetry of surface being treated and shifted from part rotation axis for distance to be found from condition , where B is length of generating line of surface being treated, mm; Δ is required value of profile convexity (concavity), mm; D is treated surface diameter, mm. Method makes it possible to obtain convex shape of profile of part internal surface being treated. EFFECT: improved quality of treatment. 1 ex, 1 dwg