Cutting insert having chip control surface with outwardly facing arcuate corner protrusions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 1, 2015
Grant Date -
Nov 22, 2012
app pub date -
Jul 26, 2012
filing date -
Feb 5, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hexahedral-shaped cutting insert has a concavely curved upper surface, a lower surface, a plurality of side surfaces connecting the two, and a central hole passing through the upper and lower surfaces. Cutting edges are formed at intersections between the upper surface and the side surfaces, and corner cutting edge portions are formed at borders of two adjacent cutting edges. Cutting edge height is largest at corner cutting edge portions and smallest in the middle portions. In an inward direction of the insert from a cutting edge, the upper surface has a land portion, a downward inclined surface, a bottom surface, and a seating surface portion. A plurality of semispherical protrusions are formed on border portions between the downward inclined surface and the bottom surface, and at least one corner cutting edge portion has a corner bottom surface surrounded by an outwardly facing arcuate protrusion connecting two adjacent semispherical protrusions.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- B23B Class
- 466 Applications Filed
- 391 Patents Issued To-Date
- 83.91 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- B23B Class
- 17.14 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 1, 2027 |
