| 主权项 |
1. A finish depth turning insert comprising:
opposite first and second surfaces which define a reference plane located therebetween and extending parallel therewith; a peripherally extending peripheral surface connected to the first and second surfaces; a first corner defining, at the first surface, a corner radius; a cutting edge formed between the first surface and the peripheral surface, and extending along the first corner as well as first and second edge portions connected to and extending from different sides of the first corner; and a chip control arrangement formed at the first surface;the reference plane defining:
an upward direction directed perpendicularly from the reference plane towards the first surface; a downward direction opposite to the upward direction; and a bisector plane perpendicular to the reference plane and bisecting the first corner;the bisector plane defining
an inward direction directed into the insert and parallel with the reference plane;the chip control arrangement being symmetric about the bisector plane, and comprising:
a medium protuberance; and a finish protuberance located between the medium protuberance and the first corner;the medium protuberance comprising:
first and second medium deflector surfaces respectively facing the first and second edge portions; and a medium upper surface connected to the first and second medium deflector surfaces and being located further from the reference plane than the cutting edge;the finish protuberance comprising:
a front finish deflector surface; a rear surface extending to the medium protuberance; first and second relief surfaces extending from the front finish deflector surface to the rear surface, and respectively facing the first and second edge portions; and a finish peak connected to the front finish deflector surface, the rear surface and the first and second relief surfaces, and located closer to the reference plane than the cutting edge. |
