Back to results
US 11,103,935 B2Granted
Drill insert
AssigneeSandvik Intellectual Property AB
InventorsHakan Carlberg, Fritz Alum Yah
Life of this patent
Estimating the term…
Abstract
A metal cutting drill insert for a drill tool having a chip disruptor provided at a rake face. The chip disruptor is further configured with a chamfer at a leading cutting edge region to increase cutting resistance and facilitate chip breakage.
Claims20
A metal cutting drill insert for a drill tool comprising:
- at least one cutting edge formed at an intersection of an adjoining rake face and a clearance face, the cutting edge having a length arranged to be aligned radially at the tool;
- a chip disruptor formed as a raised projection or recess at the rake face and extending from the cutting edge, wherein a length of the chip disruptor in a lengthwise direction along the rake face is less than a remaining length portion of the cutting edge at one or both sides of the chip disruptor between lateral sides of the insert;
- and
- a chamfer at the intersection of the rake face and the clearance face and positioned at the chip disruptor, the chamfer being defined relative to a profile of the cutting edge at one or either side of the chip disruptor.
1 more element
Dependencies are inferred from the claim text.