| 摘要 |
An indexable cutting insert having a top surface, a bottom surface, and a plurality of side surfaces. A main cutting edge, a ramping cutting edge, a wiper cutting edge, and a nose radius cutting edge are formed at the intersection between the top surface and the side surfaces. Two diagonally side surfaces further comprise a first side surface and a second side surface. The second side surface extends the entire length of the main cutting edge. The first and second side surfaces and two other side surfaces contact an insert pocket of the milling cutter when the cutting insert is mounted the insert pocket of the high-speed milling cutter, thereby providing four-point contact between the cutting insert and the insert pocket. |
| 主权项 |
1. An indexable cutting insert for a high-speed milling cutter, comprising:
a top surface having a substantially planar central portion, a substantially planar bottom surface, a first pair of side surfaces (16, 22) diagonally opposite each other, a second pair of side surfaces (18, 24) diagonally opposite each other, and a third pair of side surfaces (20, 26) diagonally opposite each other; a main cutting edge formed at an intersection between the top surface and the first pair of side surfaces (16, 22); a ramping cutting edge formed at an intersection between the top surface and the second pair of side surfaces (18, 24); a wiper cutting edge formed at the intersection between the top surface and the third pair of side surfaces (20, 26); and a nose radius cutting edge formed at the intersection between the top surface and the first and third pair of side surfaces (16, 22, 20, 26), wherein the first pair of side surfaces (16, 22) further comprise a first side surface (16a, 22a) and a second side surface (16b, 22b), and wherein the first side surface (16a, 22a) of the first pair of sides surfaces (16, 22) is formed at a first angle with respect to the substantially planar bottom surface, and wherein the second side surface (16b, 22b) of the first pair of side surfaces (16, 22) is formed at a second, different angle with respect to the substantially planar bottom surface, and wherein the second side surfaces (16b and 22b) of each of the first pair of side surfaces (16, 22), the first side surface (16a or 22a) of one of the first and second side surfaces (16 or 22), and one side surface (18 or 24) of the second pair of side surfaces (18, 24) provide four-point contact between the cutting insert and an insert pocket when the cutting insert is mounted the insert pocket of the high-speed milling cutter. |
