Cutting insert and method for chip removing machining
CA 1313962 C · Owner: Sandvik Ab · Inventors: Hessman, Anders B. I.; Nystrom, Leif R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cutting insert (10) and a method for chip removing machining, preferably for milling. The insert has a rake face (16A) and a clearance face (13). A cutting edge (15) is arranged at the line of intersection of said faces. The rake face comprises at least two adjacent, elongated ridges (14,17) which extend along at least a part of the cutting edge. A first ridge (14) connects to the cutting edge. A second (17) of said ridges is arranged to become active after wear of the first ridge. The method includes the step of wearing the first ridge to a substantial degree before activating the second ridge. (Fig. 1)
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 2, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.