| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To extend a tool life by suitably suppressing the abrasion of a tool without causing cost increase and having an influence on machining time or machining accuracy. <P>SOLUTION: In the cutting method, a workpiece W is cut by rotating a rotary tool 3 with a circular cutting edge 4 around an axis while supplying a cutting fluid. Cutting is performed by means of the rotary tool 3 which is rotated in the same direction as an outflow direction of chips 6, and the rotary tool 3 is rotated at a rotational speed of the rotary tool at which a circumferential speed of the cutting edge 4 is higher than an outflow speed of the chips 6. Thus, the direct solid contact between the rotary tool 3 and the chips 6 is reduced with the use of a dynamic pressure effect, and the wear of the rotary tool 3 is suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
