Patent ID: 9636758
Date: 2017-05-02
CPC Classifications: B23C,Y10T

Claim:
1. A ramping insert comprising: opposing first and second rake surfaces; an insert peripheral surface connecting the first and second rake surfaces; an insert screw hole opening out to opposing sides of the insert peripheral surface, the insert screw hole having an insert screw hole axis; and first and second cutting edges extending along an intersection of the insert peripheral surface and a corresponding one of the first and second rake surfaces; each of the first and second cutting edges comprising: a first ramping sub-edge; a first side sub-edge; a first feed sub-edge connected to the first ramping sub-edge and the first side sub-edge; a second ramping sub-edge connected to the first side sub-edge; a second side sub-edge connected to the first ramping sub-edge; and a second feed sub-edge connected to the second ramping sub-edge and the second side sub-edge; wherein: each of the ramping and feed sub-edges is longer than each of the side sub-edges; a maximum rake surface length of each rake surface is measurable between the first and second side sub-edges thereof, each of the ramping and feed sub-edges converge with increasing proximity to the side sub-edge to which they are both connected; and each ramping sub-edge comprises a corner portion and each feed sub-edge comprises a corner portion adjacent to the ramping sub-edge's corner portion, and a connection point of the ramping sub-edge to the feed sub-edge is located in the middle of a corner formed by the adjacent corner portions.