| 摘要 |
PROBLEM TO BE SOLVED: To stably perform cutting work achieving excellent finished surfaces even when feed rate in a lateral direction is made to be fast in an edge replacement type cutting tool performing both rough cutting and finish cutting by attaching an insert for rough cutting and an insert for finishing. SOLUTION: In the edge replacement type cutting tool in which the insert 20 for rough cutting and the insert 30 for finishing are alternately detachably attached to the tool body 10, the relationship between a corner cutting edge 23 for rough cutting in a corner part where an end cutting edge 21 for rough cutting and a peripheral cutting edge 22 for rough cutting in the insert for rough cutting are crossed, and a corner cutting edge 33 for finishing in a corner part where an end cutting edge 31 for finishing in a protrusive circular shape toward an axial tip side and a peripheral cutting edge 32 for finishing in the insert for finishing are crossed, is properly set, and the end cutting edge for finishing is projected further into the axial end side than the end cutting edge for rough cutting. COPYRIGHT: (C)2010,JPO&INPIT
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