FIELD: technological processes in machine engineering, namely treatment of annular variable-profile grooves. SUBSTANCE: method comprises steps of infeed of rotating grinding wheel by necessary depth of groove and then imparting rotation to blank; turning grinding wheel in plane parallel to blank axis around axis normal to rotation axis of blank; matching stages of rotating blank and of turning grinding wheel; determining maximum turning angle of grinding wheel during half-revolution of blank according to given relation. EFFECT: lowered cost of technological preparation of manufacturing process. 5 dwg, 1 ex
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