| 摘要 |
A chip cutting tool for rotary machining operations having a longitudinal axis (A) of rotation and comprising an indexable cutting insert (1) having cutting edges (10a), a tool holder (2) having an insert retaining pocket (47) and clamping means (3) for securing the insert in the pocket. Each of the cutting edges comprising leading and trailing cutting edge portions (17, 18). The trailing cutting edge portion is co-directional with the longitudinal axis, as compared with the leading cutting edge portion and located above a reference plane parallel to a plan view and passing through the longitudinal axis. A relief flank surface (13a) associated with the trailing cutting edge portion (18) is directed at an internal acute angle to the reference plane. The chip cutting tool can be used in end milling, drilling, and turning operations for machining plane or irregular shape surfaces. |
