CUTTING TOOL, PROCESSING DEVICE AND PROCESSING METHOD USING CUTTING TOOL

摘要

PROBLEM TO BE SOLVED: To provide a cutting tool that can perform processing so that the hill and valley may alternately be formed along the axial direction easily and with high accuracy, a processing device, and a processing method using the cutting tool.;SOLUTION: In the cutting tool 1 which performs processing so that the hill and valley may alternately be formed along the axial direction with respect to a recess whose cross section is semicircular, the cutting tool has: one or two large-diameter parts 5, 7 which are formed into shapes corresponding to the valley and have diameters smaller than the inside peripheral diameter of the valley; two or three small-diameter parts 4, 6 and 8 which are formed into shapes corresponding to the hill and have diameters smaller than those of the large-diameter parts; and cutters 10 whose blades having prescribed twisted angles with respect to the axial direction are formed at the large-diameter parts and the small-diameter parts. The large-diameter parts and the small-diameter parts are alternately arranged along the axial direction of the cutting tool 1.;COPYRIGHT: (C)2013,JPO&INPIT