| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a milling tool capable of reducing generated noises and vibrations in a process for pulverization-milling of an end face of a tubular cutting workpiece and improving productivity of the process and further considerably extending the life duration of the milling tool. <P>SOLUTION: On an end face 4a of a tool body 4 on which chips T acting as a cutting edge are attached, a milling tool 2 circumferentially includes a plurality of chip rows A, B in which a plurality of the chips T is apposed in a radially extended manner. Each of the chips T in an adjacent pair of the chip rows A, B is arranged in a zigzag form with radial distances, from a rotary center axis line X, allowed to alternately differ from each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
