| 摘要 |
<p>A cutting insert (25) includes two supporting surfaces (41), four side surfaces (47) between the two supporting surfaces (41), each side surface (47) of the four side surfaces intersecting with two other side surfaces of the four side surfaces to form four corners (67), the four side surfaces (47) intersecting with the two supporting surfaces (41) to form, at two of the four corners (67), four cutting corners (49), each cutting corner including a first and a second cutting edge component (51 and 53), and to form, at two other ones of the four corners, four non-cutting corners. Each supporting surface (41) includes a surface portion (43) and an angled supporting surface (45), a plane of the angled supporting surface intersecting with a plane (PSS) of the surface portion (43) along a line of intersection and forming a non-zero angle (²') with the plane (PSS) of the surface portion (43), wherein the line of intersection on a first one of the two supporting surfaces (41) is substantially perpendicular to the line of intersection on a second one of the two supporting surfaces (41). A toolholder and a cutting tool are also disclosed.</p> |
