| 摘要 |
A generally square-shaped indexable cutting insert with four cutting edges for mounting in milling cutters for either slotting operations or for left-hand and right-hand face milling of right-angled corners in a metal workpiece. The cutting edge is parallel to the bottom surface and has a primary cutting edge extending between two wipers, each wiper being adjacent a corner edge. A first relief surface adjacent the primary cutting edge has a first relief angle and a second relief adjacent the two wipers has a second relief angle that is greater than the first relief angle. The first relief surface has a width dimension measured perpendicularly to the cutting edge that has a minimum value proximal to the two wipers and a maximum value at a central region of the cutting edge. |
