BORING APPARATUS AND HOLE MACHINING METHOD

摘要

A boring apparatus in which a hole in a work (w) is machined by feeding a tool holder (34, 35) provided with a bit (102, 103, 104, 105) in an axial direction relative to the work(w), while rotating the tool holder (34, 35) about an axis, the boring apparatus including: a holder body(l?l); a first bit (102, 103, 104) that machines a hole in the work (W) in a first machining process; a second bit (105) that machines a hole in the work (W) in a second machining process that is performed after the first machining process; a measuring device (60) that measures the hole in the work (W) after the second machining process; and a correction unit (84) that corrects a radial position of the first bit (102, 103, 104) in the first machining process and a radial position of the second bit (105) in the second machining process on the basis of a measurement result in the measuring device (60).