| 摘要 |
<p>As seen in a side view of the cutting insert (10), the cutting insert is provided with cutting edges (30) that slope in opposite directions. A rake surface (42) extends at the upper surface (12) inwardly from the cutting edges. An inward portion (44) of the rake surface forms a main chip former (46). A first end (62) of the rake surface (42) adjacent a raised cutting corner (40) and distal a lower cutting corner (36) is provided with a secondary chip former (64) that extends from adjacent the raised cutting corner (40) to the main chip former (46).</p> |
