| 摘要 |
A single-sided tangential ramping milling insert (14) for high speed milling includes opposite insert seating and top surfaces (20,22) and a peripheral surface (24) which extends therebetween. The milling insert (14) has a reference plane (P) which passes through the entire peripheral surface (24), midway between the seating and top surfaces (20,22). The peripheral surface (24) includes two opposite side surfaces (26). Each side surface (26) includes a first cutting edge (40), a second cutting edge (42) connected to the first cutting edge (40) and extending transversely thereto, a ramping cutting edge (44) connected to the second cutting edge (42) and located opposite the first cutting edge (40), and a rake surface (38) which extends from at least a portion of the first cutting edge (40) toward the insert seating surface (20). The milling insert (14) includes two ramping relief surfaces (60), each of which extends from a ramping cutting edge (44) of one side surface (26) towards the first cutting edge (40) of the opposite side surface (26). |
