FIELD: mechanical engineering.
SUBSTANCE: invention relates to mechanical engineering field and can be used during noncircular holes polishing in long-measuring critical parts. Polishing is implemented by means of flexible tool external shape of which replicates shape of treated hole of the part. To the instrument and to the part it is imparted comparative reciprocative transportation. It is used flexible tool with implemented lengthwise its longitudinal axis symmetrical planes with cross-section, replicating external shape of tool. In cavity in turn it is delivered actuating medium under pressure with provision of tool clipping to treated surface.
EFFECT: there are improved quality and productivity of noncircular holes polishing of long-measuring critical parts.
2 dwg, 3 cl
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