| 摘要 |
<p>In the production of rotor grooves, between the usual undercut-free opening of the groove with a disk milling cutter and profile milling by means of a high speed, high performance steel profile shaft milling cutter, a preliminary fine cutting operation is inserted, in which the profile form is premachined with a profile shaft milling cutter equipped with indexable cutting bits. The profile shaft milling cutter used for the purpose has a greater number of cutting surfaces at its tooth tips than at its tooth flanks. The cutting surfaces defined by overlapping, in circumferential direction, of the cutting edges of the indexable cutting bits are interrupted, so that substantially flat and hardly stiff chips are produced.</p> |
