| 摘要 |
<p>Embodiments of a cutting tool assembly having a cutting insert and a tool body are provided. The cutting insert has an upper surface, a lower surface, flank surfaces and a protrusion. The lower surface is parallel to the upper surface. The flank surfaces are inclined with respect to the upper surface and the lower surface between the upper surface and the lower surface. The protrusion protrudes from the lower surface and has a truncated hemispherical shape. The tool body has a pocket, a recess and an engagement portion. The pocket has a bottom surface and side wall. The recess is concave from the bottom surface of the pocket and engages the protrusion. The engagement portion is provided in the side wall and engages the flank surface of the cutting insert in a dovetail engagement.</p> |
