Combined precision boring and burnishing tool

摘要

A combined tool for precision boring and burnishing a tubular workpiece includes a bore head and a burnishing head which are advanced by a feed tube into the interior of the tubular workpiece while the latter is rotated about its axis. In order to reduce the stresses on the three above-mentioned elements and to avoid markings on the finished surface, two of the three elements are connected by a coupling, which while transmitting torque between the two connected elements, permits limited deviations of the axes thereof.